diff --git a/data/dictionary/STCharacters.txt b/data/dictionary/STCharacters.txt
index 677e8fbc7..32d09d73e 100644
--- a/data/dictionary/STCharacters.txt
+++ b/data/dictionary/STCharacters.txt
@@ -706,7 +706,7 @@
 惭	慚
 惮	憚
 惯	慣
-愈	愈 癒
+愈	愈 癒 瘉
 愠	慍
 愤	憤
 愦	憒
diff --git a/data/dictionary/TSCharacters.txt b/data/dictionary/TSCharacters.txt
index fbe891206..436b510ca 100644
--- a/data/dictionary/TSCharacters.txt
+++ b/data/dictionary/TSCharacters.txt
@@ -1664,6 +1664,7 @@
 痮	痮 𪽪
 痾	疴
 瘂	痖
+瘉	愈
 瘋	疯
 瘍	疡
 瘓	痪
diff --git a/test/testcases/testcases.json b/test/testcases/testcases.json
index 9cb5ff7b0..16815358f 100755
--- a/test/testcases/testcases.json
+++ b/test/testcases/testcases.json
@@ -511,6 +511,20 @@
         "t2s": "几周之后 好几周 第几周 多少周 多少周边产品 茶几周围"
       }
     },
+    {
+      "id": "case_069_t2x",
+      "input": "治愈 治癒 治瘉 痊愈 痊癒 痊瘉 愈合 癒合 瘉合 病愈 病癒 病瘉",
+      "expected": {
+        "t2s": "治愈 治愈 治愈 痊愈 痊愈 痊愈 愈合 愈合 愈合 病愈 病愈 病愈"
+      }
+    },
+    {
+      "id": "case_069_s2x",
+      "input": "治愈 痊愈 愈合 病愈",
+      "expected": {
+        "s2t": "治癒 痊癒 癒合 病癒"
+      }
+    },
     {
       "id": "BYVoid_OpenCC_Issue_475_s2twp",
       "input": "仙童半导体厂 人工智能借用",