diff --git a/Doc/library/os.path.rst b/Doc/library/os.path.rst
index f5ddb426c915f5a..4825093ccfe6d12 100644
--- a/Doc/library/os.path.rst
+++ b/Doc/library/os.path.rst
@@ -415,7 +415,9 @@ the :mod:`glob` module.)
 
    Normalize the case of a pathname.  On Windows, convert all characters in the
    pathname to lowercase, and also convert forward slashes to backward slashes.
-   On other operating systems, return the path unchanged.
+   On other operating systems (Posix),  return String or Bytes converted from
+   Path-like Object
+
 
    .. versionchanged:: 3.6
       Accepts a :term:`path-like object`.
diff --git a/Lib/posixpath.py b/Lib/posixpath.py
index 8025b063397a038..b1bf3f258a77f1d 100644
--- a/Lib/posixpath.py
+++ b/Lib/posixpath.py
@@ -52,7 +52,7 @@ def _get_sep(path):
 # (another function should be defined to do that).
 
 def normcase(s, /):
-    """Normalize case of pathname.  Has no effect under Posix"""
+    """Normalize case of pathname.  Normalizes path-like Objects into Str or Bytes """
     return os.fspath(s)
 
 
diff --git a/Misc/NEWS.d/next/Documentation/2026-10-29-18-57-38.gh-issue-160904.nyxAv_.rst b/Misc/NEWS.d/next/Documentation/2026-10-29-18-57-38.gh-issue-160904.nyxAv_.rst
new file mode 100644
index 000000000000000..03dd3581b5fce45
--- /dev/null
+++ b/Misc/NEWS.d/next/Documentation/2026-10-29-18-57-38.gh-issue-160904.nyxAv_.rst
@@ -0,0 +1 @@
+FiX: In Function os.path.normcase in Lib/posixpath.py docstring states path remains unchanged on POSIX Systems which is not true. Updated Docstring and documentation