diff --git a/pandas/core/generic.py b/pandas/core/generic.py
index 8aa8f8bb60654..2bbd261faeddf 100644
--- a/pandas/core/generic.py
+++ b/pandas/core/generic.py
@@ -4239,11 +4239,11 @@ def sort_values(
 
     def reindex(self: FrameOrSeries, *args, **kwargs) -> FrameOrSeries:
         """
-        Conform %(klass)s to new index with optional filling logic.
+        Create an object with a new index and columns retained from %(klass)s.
 
-        Places NA/NaN in locations having no value in the previous index. A new object
-        is produced unless the new index is equivalent to the current one and
-        ``copy=False``.
+        The values are only retained for index that matches in %(klass)s else NA/Nan.
+        If the new index is entirely equivalent to the current one and copy=false the
+        %(klass)s remains intact.
 
         Parameters
         ----------
@@ -4286,7 +4286,7 @@ def reindex(self: FrameOrSeries, *args, **kwargs) -> FrameOrSeries:
 
         Returns
         -------
-        %(klass)s with changed index.
+        %(klass)s with a new index.
 
         See Also
         --------