The saphenous nerve (also long saphenous nerve, internal saphenous nerve, latin: nervus saphenus) is a large cutaneous branch of the femoral nerve. The saphenous nerve contains only sensory fibers.
The saphenous nerve runs posterior to the sartorius, enters the adductor canal and pierces the anterior wall of the channel. After emerging from the adductor canal, the saphenous nerve curves around the medial condyle of the femur, reaching the medial side of the lower leg. Then the saphenous nerve continues downward, crosses the medial malleolus and terminates at the medial edge of the foot.
The saphenous nerve innervates the skin in the medial region of the lower leg and in the medial edge of the foot.