diff --git a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingMedicalReviewDto.cs b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingMedicalReviewDto.cs
index d7b87298..c88aa408 100644
--- a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingMedicalReviewDto.cs
+++ b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingMedicalReviewDto.cs
@@ -196,7 +196,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
 
         public Guid TaskMedicalReviewId { get; set; }
 
-        public string Content { get; set; }
+        public string Content { get; set; }=string.Empty;
 
         /// <summary>
 		/// 阅片人是否认同
@@ -220,7 +220,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
     {
         public Guid TaskMedicalReviewId { get; set; }
 
-        public string Content { get; set; }
+        public string Content { get; set; } = string.Empty;
 
       
         /// <summary>