The common cause of foot cramps is spasm of the plantar muscles, which can be divided into the following two cases: First, the medial muscles of the foot are the bunion, bunions and bunions, if the muscle group has spasm, the bunions and the first metatarsal can be dorsally stretched, stretching these three muscles, so that the muscle spasm is gradually released, it only takes about ten seconds to make the twitching and pain relief. Second, the middle of the foot muscle group has toe short flexor, plantar square muscle, earthworm muscle and interosseous muscle, if this muscle group spasm, can be the middle three toes and metatarsal dorsal extension, stretching the middle of the plantar muscle group, can also make muscle tension, spasm fast relief, pain relief, after relieving pain and spasm, should identify the cause of cramps as soon as possible, for the cause of treatment, to prevent cramps again.