diff --git a/hydrogram/methods/messages/send_poll.py b/hydrogram/methods/messages/send_poll.py
index c8b239222..98a3f7458 100644
--- a/hydrogram/methods/messages/send_poll.py
+++ b/hydrogram/methods/messages/send_poll.py
@@ -140,10 +140,14 @@ async def send_poll(
         """
 
         solution, solution_entities = (
-            await utils.parse_text_entities(
-                self, explanation, explanation_parse_mode, explanation_entities
-            )
-        ).values()
+            (
+                await utils.parse_text_entities(
+                    self, explanation, explanation_parse_mode, explanation_entities
+                )
+            ).values()
+            if explanation
+            else (None, None)
+        )
 
         reply_to = utils.get_reply_head_fm(message_thread_id, reply_to_message_id)
 
@@ -169,7 +173,7 @@ async def send_poll(
                     if correct_option_id is not None
                     else None,
                     solution=solution,
-                    solution_entities=solution_entities or [],
+                    solution_entities=None if solution is None else (solution_entities or []),
                 ),
                 message="",
                 silent=disable_notification,
diff --git a/news/21.bugfix.rst b/news/21.bugfix.rst
new file mode 100644
index 000000000..ee0e76e30
--- /dev/null
+++ b/news/21.bugfix.rst
@@ -0,0 +1 @@
+Make the quiz explanation an optional parameter