diff --git a/changelog/7966.bugfix.rst b/changelog/7966.bugfix.rst
deleted file mode 100644
index 40cad46c6..000000000
--- a/changelog/7966.bugfix.rst
+++ /dev/null
@@ -1 +0,0 @@
-Assertion rewrite mechanism now gives a seperate, more detailed error message from failures within __iter__.
diff --git a/src/_pytest/assertion/util.py b/src/_pytest/assertion/util.py
index d20c2363e..fc5dfdbd5 100644
--- a/src/_pytest/assertion/util.py
+++ b/src/_pytest/assertion/util.py
@@ -134,13 +134,6 @@ def isiterable(obj: Any) -> bool:
         return not istext(obj)
     except TypeError:
         return False
-    except Exception as e:
-        raise ValueError(
-            [
-                f"pytest_assertion plugin: unexpected exception {e!r} while testing object {obj!r}",
-                ", probably from __iter__",
-            ]
-        )
 
 
 def has_default_eq(
@@ -202,20 +195,13 @@ def assertrepr_compare(
                 explanation = _notin_text(left, right, verbose)
     except outcomes.Exit:
         raise
-    except Exception as e:
-        if (
-            isinstance(e, ValueError)
-            and (len(e.args) == 1)
-            and ("__iter__" in str(e.args[0]))
-        ):
-            explanation = e.args[0]
-        else:
-            explanation = [
-                "(pytest_assertion plugin: representation of details failed: {}.".format(
-                    _pytest._code.ExceptionInfo.from_current()._getreprcrash()
-                ),
-                " Probably an object has a faulty __repr__.)",
-            ]
+    except Exception:
+        explanation = [
+            "(pytest_assertion plugin: representation of details failed: {}.".format(
+                _pytest._code.ExceptionInfo.from_current()._getreprcrash()
+            ),
+            " Probably an object has a faulty __repr__.)",
+        ]
 
     if not explanation:
         return None
diff --git a/testing/test_assertrewrite.py b/testing/test_assertrewrite.py
index 62c6bb8d4..d85c8bed6 100644
--- a/testing/test_assertrewrite.py
+++ b/testing/test_assertrewrite.py
@@ -689,7 +689,7 @@ class TestAssertionRewrite:
         def f() -> None:
             class A:
                 def __iter__(self):
-                    raise ValueError()
+                    raise TypeError("user message")
 
                 def __eq__(self, o: object) -> bool:
                     return self is o
@@ -698,7 +698,7 @@ class TestAssertionRewrite:
 
         msg = getmsg(f)
         assert msg is not None
-        assert "__iter__" in msg and "__repr__" not in msg
+        assert "Unexpected exception" in msg
 
     def test_formatchar(self) -> None:
         def f() -> None: