diff --git a/changelog/4058.doc.rst b/changelog/4058.doc.rst
new file mode 100644
index 000000000..51d568f54
--- /dev/null
+++ b/changelog/4058.doc.rst
@@ -0,0 +1 @@
+Update fixture documentation to specify that a fixture can be invoked twice in the scope it's defined for.
diff --git a/doc/en/fixture.rst b/doc/en/fixture.rst
index d90850d09..fa111afa4 100644
--- a/doc/en/fixture.rst
+++ b/doc/en/fixture.rst
@@ -259,6 +259,11 @@ instance, you can simply declare it:
 
 Finally, the ``class`` scope will invoke the fixture once per test *class*.
 
+.. note::
+
+    Pytest will only cache one instance of a fixture at a time.
+    This means that when using a parametrized fixture, pytest may invoke a fixture more than once in the given scope.
+
 
 ``package`` scope (experimental)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^