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<!-- DFIN ActiveDisclosure(SM) XBRL Schema Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date      : 2021-11-08T19:33:43.9500838+00:00 -->
<!-- Version            : 5.0.1.702 -->
<!-- Package ID         : aad0c82bc53e4769b7e6bcdbfa789a9e -->
<!-- Copyright (c) 2021 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
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  <xsd:element id="flgt_NoncashOrPartNoncashPublicOfferingProceedsIncludedInOtherCurrentAssets" name="NoncashOrPartNoncashPublicOfferingProceedsIncludedInOtherCurrentAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="flgt_NoncashOrPartNoncashPublicOfferingCostsIncludedInAccountsPayable" name="NoncashOrPartNoncashPublicOfferingCostsIncludedInAccountsPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="flgt_DebtCommitmentsAndContingenciesDisclosureTextBlock" name="DebtCommitmentsAndContingenciesDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_DebtCommitmentsAndContingenciesDisclosureAbstract" name="DebtCommitmentsAndContingenciesDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_LessorAndLesseeOperatingAndFinanceLeasesTextBlock" name="LessorAndLesseeOperatingAndFinanceLeasesTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_EquityDistributionAgreementsDisclosureTextBlock" name="EquityDistributionAgreementsDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_ReagentsAndSuppliesPolicyTextBlock" name="ReagentsAndSuppliesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_CustomerDepositPolicyTextBlock" name="CustomerDepositPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_TradeAccountsReceivableAndAllowanceForCreditLossesPolicyTextBlock" name="TradeAccountsReceivableAndAllowanceForCreditLossesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_RedeemablePreferredStockInvestmentPolicyTextBlock" name="RedeemablePreferredStockInvestmentPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_ScheduleOfAvailableForSaleDebtSecuritiesAndEquityTradingSecuritiesReconciliationTableTextBlock" name="ScheduleOfAvailableForSaleDebtSecuritiesAndEquityTradingSecuritiesReconciliationTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_ScheduleOfLeaseRightOfUseAssetShortTermLeaseLiabilitiesAndLongTermLeaseLiabilitiesTableTextBlock" name="ScheduleOfLeaseRightOfUseAssetShortTermLeaseLiabilitiesAndLongTermLeaseLiabilitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_ScheduleOfSupplementalInformationRelatedToLeasesTableTextBlock" name="ScheduleOfSupplementalInformationRelatedToLeasesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_LesseeOperatingAndFinanceLeaseLiabilityMaturityTableTextBlock" name="LesseeOperatingAndFinanceLeaseLiabilityMaturityTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_FFGeneBiotechMember" name="FFGeneBiotechMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_CytometrySpecialistsIncMember" name="CytometrySpecialistsIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_SummaryOfBusinessAcquisitionRevenueAndOperatingIncomeOrLossTableTextBlock" name="SummaryOfBusinessAcquisitionRevenueAndOperatingIncomeOrLossTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_NumberOfCustomers" name="NumberOfCustomers" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_SummaryOfSignificantAccountingPoliciesLineItems" name="SummaryOfSignificantAccountingPoliciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_SummaryOfSignificantAccountingPoliciesTable" name="SummaryOfSignificantAccountingPoliciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_CustomerOneMember" name="CustomerOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_CustomerTwoMember" name="CustomerTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_ClinicalInstitutionalContractsMember" name="ClinicalInstitutionalContractsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_ClinicalPatientContractsMember" name="ClinicalPatientContractsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_ClinicalInsuranceContractsMember" name="ClinicalInsuranceContractsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_ReagentsAndSuppliesCurrent" name="ReagentsAndSuppliesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="flgt_AvailableForSaleSecuritiesDebtEquitySecuritiesAndTradingSecuritiesAmortizedCostBasis" name="AvailableForSaleSecuritiesDebtEquitySecuritiesAndTradingSecuritiesAmortizedCostBasis" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="flgt_AvailableForSaleSecuritiesDebtEquitySecuritiesAndTradingSecuritiesUnrealizedGainBeforeTax" name="AvailableForSaleSecuritiesDebtEquitySecuritiesAndTradingSecuritiesUnrealizedGainBeforeTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="flgt_AvailableForSaleSecuritiesDebtEquitySecuritiesAndTradingSecuritiesUnrealizedLossBeforeTax" name="AvailableForSaleSecuritiesDebtEquitySecuritiesAndTradingSecuritiesUnrealizedLossBeforeTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="flgt_AvailableForSaleSecuritiesDebtEquitySecuritiesAndTradingSecurities" name="AvailableForSaleSecuritiesDebtEquitySecuritiesAndTradingSecurities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="flgt_ShortTermEquitySecuritiesMember" name="ShortTermEquitySecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_ShortTermDebtSecuritiesMember" name="ShortTermDebtSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_DebtSecuritiesDueAfterOneYearThroughFiveYearsMember" name="DebtSecuritiesDueAfterOneYearThroughFiveYearsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_DebtSecuritiesDueAfterFiveYearsThroughTenYearsMember" name="DebtSecuritiesDueAfterFiveYearsThroughTenYearsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_YankeeDebtSecuritiesMember" name="YankeeDebtSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_RedeemablePreferredStockInvestmentMember" name="RedeemablePreferredStockInvestmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_ShortTermMarketableSecuritesMember" name="ShortTermMarketableSecuritesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_LongTermMarketableSecuritiesMember" name="LongTermMarketableSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_AvailableForSaleDebtSecuritiesAndEquityTradingSecuritiesGrossUnrealizedLoss" name="AvailableForSaleDebtSecuritiesAndEquityTradingSecuritiesGrossUnrealizedLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="flgt_CashEquivalentsAndAvailableForSaleAndDebtSecurities" name="CashEquivalentsAndAvailableForSaleAndDebtSecurities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="flgt_ScheduleOfAvailableForSaleAndTradingSecuritiesLineItems" name="ScheduleOfAvailableForSaleAndTradingSecuritiesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_ScheduleOfAvailableForSaleAndTradingSecuritiesTable" name="ScheduleOfAvailableForSaleAndTradingSecuritiesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_MarginAccountBorrowingMember" name="MarginAccountBorrowingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_USAgencyDebtSecuritiesMember" name="USAgencyDebtSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_FairValueAssetsTransfersBetweenLevelsAmount" name="FairValueAssetsTransfersBetweenLevelsAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="flgt_MedicalLabEquipmentMember" name="MedicalLabEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_AircraftMember" name="AircraftMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_GeneralEquipmentMember" name="GeneralEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_AutomobileMember" name="AutomobileMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_AssetsNotYetPlacedInServiceMember" name="AssetsNotYetPlacedInServiceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_MarketableSecuritiesInterestReceivableCurrent" name="MarketableSecuritiesInterestReceivableCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="flgt_PayableToBrokerForMarketableSecuritiesPurchased" name="PayableToBrokerForMarketableSecuritiesPurchased" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="flgt_PayrollLiabilitiesCurrent" name="PayrollLiabilitiesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="flgt_SalesTaxPayableAndOtherCurrent" name="SalesTaxPayableAndOtherCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="flgt_OtherSignificantBalanceSheetAccountsLineItems" name="OtherSignificantBalanceSheetAccountsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_OtherSignificantBalanceSheetAccountsTable" name="OtherSignificantBalanceSheetAccountsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_DebtSecurityInvestmentOutstandingBorrowingAmount" name="DebtSecurityInvestmentOutstandingBorrowingAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="flgt_DebtInstrumentInterestRateAtBeginningOfPeriod" name="DebtInstrumentInterestRateAtBeginningOfPeriod" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_PaymentsForClosingOfEscrowFinancedUnderMarginLoan" name="PaymentsForClosingOfEscrowFinancedUnderMarginLoan" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="flgt_DebtInstrumentInterestRateAtEndOfPeriod" name="DebtInstrumentInterestRateAtEndOfPeriod" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_DebtCommitmentsAndContingenciesLineItems" name="DebtCommitmentsAndContingenciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_DebtCommitmentsAndContingenciesTable" name="DebtCommitmentsAndContingenciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_XilongScientificMember" name="XilongScientificMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_ReagentsAndOtherSuppliesMember" name="ReagentsAndOtherSuppliesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_MedicalLabFurnitureMember" name="MedicalLabFurnitureMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_OperatingLeasesTermOfExpiration" name="OperatingLeasesTermOfExpiration" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_LesseeOperatingLeaseExtendedLeaseTermExpirationDate" name="LesseeOperatingLeaseExtendedLeaseTermExpirationDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_LeaseExpirationMonthAndYear" name="LeaseExpirationMonthAndYear" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_FinanceLeasesCostAbstract" name="FinanceLeasesCostAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_LessorOperatingLeaseRemainingTermOfContractIncludingRenewalOptions" name="LessorOperatingLeaseRemainingTermOfContractIncludingRenewalOptions" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_ShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" name="ShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_ShareBasedCompensationAllocationOfRecognizedPeriodCostsTable" name="ShareBasedCompensationAllocationOfRecognizedPeriodCostsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_AHMCHealthcareIncMember" name="AHMCHealthcareIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_GeneticSequencingServiceMember" name="GeneticSequencingServiceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_FulgentPharmaLimitedLiabilityCompanyMember" name="FulgentPharmaLimitedLiabilityCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_PTJAssociatesIncMember" name="PTJAssociatesIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_ResearchDevelopmentServiceMember" name="ResearchDevelopmentServiceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_MeasurementInputDiscountOwedToMarketParticipantAcquisitionPremiumMember" name="MeasurementInputDiscountOwedToMarketParticipantAcquisitionPremiumMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_LaboratoryInformationSystemPlatformMember" name="LaboratoryInformationSystemPlatformMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_IncreaseInEquityMethodInvestmentOwnershipPercentage" name="IncreaseInEquityMethodInvestmentOwnershipPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="flgt_BusinessAcquisitionsProFormaOperatingIncomeLoss" name="BusinessAcquisitionsProFormaOperatingIncomeLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="flgt_EquityOfferingPrice" name="EquityOfferingPrice" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="flgt_PercentageOfCommissionToBePaidFromGrossProceeds" name="PercentageOfCommissionToBePaidFromGrossProceeds" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_SaleOfStockWeightedAverageNetSellingPricePerShare" name="SaleOfStockWeightedAverageNetSellingPricePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="flgt_EquityDistributionAgreementsLineItems" name="EquityDistributionAgreementsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_EquityDistributionAgreementsTable" name="EquityDistributionAgreementsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_GoodwillAndIntangibleAssetsLineItems" name="GoodwillAndIntangibleAssetsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_GoodwillAndIntangibleAssetsTable" name="GoodwillAndIntangibleAssetsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="flgt_RoyaltyFreeTechnologyMember" name="RoyaltyFreeTechnologyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
</xsd:schema>
