diff --git a/IRaCIS.Core.Application/Service/ReadingCalculate/MRIPDFFCalculateService.cs b/IRaCIS.Core.Application/Service/ReadingCalculate/MRIPDFFCalculateService.cs
index c14ee91e0..ec5c870a7 100644
--- a/IRaCIS.Core.Application/Service/ReadingCalculate/MRIPDFFCalculateService.cs
+++ b/IRaCIS.Core.Application/Service/ReadingCalculate/MRIPDFFCalculateService.cs
@@ -734,7 +734,7 @@ namespace IRaCIS.Core.Application.Service.ReadingCalculate
 
             foreach (var item in notableQuestionList)
             {
-                if (markList.Any(x => x.RowId == item.RowId))
+                if (markList.Any(x => x.RowId == item.RowId && x.MeasureData.IsNotNullOrEmpty()))
                 {
                     throw new BusinessValidationFailedException(_localizer["MRIPDFF_NeedClearMark"]);
                 }