Itchy calf belly inside may be limited pruritus, restless legs syndrome and other causes. 1. limited pruritus: the common cause of limited pruritus is skin dryness, which occurs in the calf, scalp and other parts of the skin, manifested as paroxysmal intense itching symptoms on the surface of the skin or inside. 2. restless legs syndrome: restless legs syndrome may be related to genetics, drugs, a variety of diseases and other factors, mainly manifested as a stationary state, the calf area will appear discomfort, such as numbness, creeping sensation, burning sensation, itching sensation, tingling sensation and so on. Itching inside the calf belly may also have other causes, it is recommended to go to the hospital in time to improve the examination, clear cause to give targeted treatment.