diff --git a/pandas/core/frame.py b/pandas/core/frame.py
index 1bff17b40433d..10382364621c0 100644
--- a/pandas/core/frame.py
+++ b/pandas/core/frame.py
@@ -2225,6 +2225,16 @@ def to_parquet(
            col1  col2
         0     1     3
         1     2     4
+
+        If you want to get a buffer to the parquet content you can use a io.BytesIO
+        object, as long as you don't use partition_cols, which creates multiple files.
+
+        >>> import io
+        >>> f = io.BytesIO()
+        >>> df.to_parquet(f)
+        >>> f.seek(0)
+        0
+        >>> content = f.read()
         """
         from pandas.io.parquet import to_parquet