diff --git a/pandas/core/frame.py b/pandas/core/frame.py
index c01e551b38c32..8b3a45e7bbc2f 100644
--- a/pandas/core/frame.py
+++ b/pandas/core/frame.py
@@ -6721,6 +6721,24 @@ def drop_duplicates(
         DataFrame or None
             DataFrame with duplicates removed or None if ``inplace=True``.
 
+        Notes
+        --------
+        The methods :meth:`pandas.DataFrame.drop_duplicates` and :meth:`pandas.DataFrame.duplicated` rely on hashing.
+        Therefore, using a column with mutable objects, such as lists (are not hashable), in the subset parameter may result in unexpected behavior.
+
+        To handle mutable objects, convert the list column to a tuple before using it in the subset.
+
+        >>> df = pd.DataFrame([
+        ...     {'number': 1, 'item_ids': [1, 2, 3]},
+        ...     {'number': 1, 'item_ids': [1, 2, 3]},
+        ... ])
+
+        >>> df['item_ids'] = df['item_ids'].apply(tuple)
+        >>> df.drop_duplicates(inplace=True)
+        >>> df['item_ids'] = df['item_ids'].apply(list)
+           number   item_ids
+        0       1   [1, 2, 3]
+
         See Also
         --------
         DataFrame.value_counts: Count unique combinations of columns.
diff --git a/pandas/plotting/_core.py b/pandas/plotting/_core.py
index 96609fdc1671b..9f1d5387ffdee 100644
--- a/pandas/plotting/_core.py
+++ b/pandas/plotting/_core.py
@@ -98,7 +98,7 @@ def hist_series(
 
     Returns
     -------
-    matplotlib.AxesSubplot
+    matplotlib.Axes
         A histogram plot.
 
     See Also
@@ -227,7 +227,7 @@ def hist_frame(
 
     Returns
     -------
-    matplotlib.AxesSubplot or numpy.ndarray of them
+    matplotlib.Axes or numpy.ndarray of them
 
     See Also
     --------
@@ -1374,7 +1374,7 @@ def hist(
 
         Returns
         -------
-        class:`matplotlib.AxesSubplot`
+        class:`matplotlib.Axes`
             Return a histogram plot.
 
         See Also
@@ -1794,7 +1794,7 @@ def hexbin(
 
         Returns
         -------
-        matplotlib.AxesSubplot
+        matplotlib.Axes
             The matplotlib ``Axes`` on which the hexbin is plotted.
 
         See Also