diff --git a/changelog/13155.doc.rst b/changelog/13155.doc.rst
new file mode 100644
index 00000000000..8b1fa911b26
--- /dev/null
+++ b/changelog/13155.doc.rst
@@ -0,0 +1 @@
+Clarified in the parametrization examples that the built-in ``request`` fixture is used for indirect parametrization and that values are available through ``request.param``.
diff --git a/doc/en/example/parametrize.rst b/doc/en/example/parametrize.rst
index b25b822618a..251bd13fe46 100644
--- a/doc/en/example/parametrize.rst
+++ b/doc/en/example/parametrize.rst
@@ -356,6 +356,11 @@ Using the ``indirect=True`` parameter when parametrizing a test allows one to
 parametrize a test with a fixture receiving the values before passing them to a
 test:
 
+The fixture receives the built-in ``request`` fixture object as its first
+argument. For indirect parametrization, each value from
+``@pytest.mark.parametrize`` is available as ``request.param`` inside that
+fixture.
+
 .. code-block:: python
 
     import pytest