diff --git a/src/main/java/net/lensfrex/dscape/dao/service/impl/PatientDataServiceImpl.java b/src/main/java/net/lensfrex/dscape/dao/service/impl/PatientDataServiceImpl.java
index bb2870b..bdcaab8 100644
--- a/src/main/java/net/lensfrex/dscape/dao/service/impl/PatientDataServiceImpl.java
+++ b/src/main/java/net/lensfrex/dscape/dao/service/impl/PatientDataServiceImpl.java
@@ -11,12 +11,17 @@ import net.lensfrex.dscape.dao.mapper.PatientDataMapper;
 import net.lensfrex.dscape.dao.service.PatientDataService;
 import org.springframework.stereotype.Service;
 
+import java.util.ArrayList;
 import java.util.List;
 
 @Service
 public class PatientDataServiceImpl extends ServiceImpl<PatientDataMapper, PatientData> implements PatientDataService {
     @Override
     public List<PatientData> getData(List<Long> ids) {
+        if (ids == null || ids.isEmpty()) {
+            return new ArrayList<>();
+        }
+
         QueryWrapper<PatientData> wrapper = new QueryWrapper<>();
         wrapper.lambda()
                 .in(PatientData::getId, ids)