diff --git a/.changeset/wise-rockets-smoke.md b/.changeset/wise-rockets-smoke.md
new file mode 100644
index 0000000000..c81d20519d
--- /dev/null
+++ b/.changeset/wise-rockets-smoke.md
@@ -0,0 +1,5 @@
+---
+'@backstage/backend-common': patch
+---
+
+Document the default behavior of `statusCheck` option in `createStatusCheckRouter`.
diff --git a/packages/backend-common/src/service/createStatusCheckRouter.ts b/packages/backend-common/src/service/createStatusCheckRouter.ts
index ab24a6953b..fd794cc9c4 100644
--- a/packages/backend-common/src/service/createStatusCheckRouter.ts
+++ b/packages/backend-common/src/service/createStatusCheckRouter.ts
@@ -22,6 +22,10 @@ import { errorHandler, statusCheckHandler, StatusCheck } from '../middleware';
 export interface StatusCheckRouterOptions {
   logger: Logger;
   path?: string;
+  /**
+   * If not implemented, the default express middleware always returns 200.
+   * Override this to implement your own logic for a health check.
+   */
   statusCheck?: StatusCheck;
 }