Breast pain that feels like a cramp can be caused by acute breast inflammation, breast hyperplasia, and non-specific infections. 1. Acute mastitis: Patients with acute mastitis will experience significant redness, swelling and pain around the breasts during the acute phase of the disease. When the inflammation is severe, the patient may even experience severe pain like spasmodic. 2. Mastoid hyperplasia: Mastoid hyperplasia may also cause symptoms of cramp-like pain in the breasts. It is especially noticeable during menstruation. The pain may gradually subside when the period is over. 3. Non-specific infections: Non-specific infections caused by the chest wall or ribs, such as intercostal neuritis and costochondritis, can also cause frequent cramping pain in the breasts when the pain radiates around the breasts. In addition, breast pain like cramps may also be caused by tumor compression and invasion of nerves, etc. If patients have the above situation, they should go to regular hospitals in time for detailed examination, to clarify the cause of the disease and target treatment.