Most of the ankle cramps have certain triggers, as follows: 1, calcium deficiency: when the body’s blood calcium decreases, nerve excitability will increase, the muscles may twitch, if there are often ankle cramps, it may be caused by this reason. 2, overwork: people who rarely strenuous activities suddenly aggravate the local activities of the ankle, such as strenuous bouncing, walking for too long, or standing for too long without activity, may lead to Cramps. 3, cold: local stimulation and local muscles may also lead to cramps and convulsions. If cramps occur in the ankle, it is recommended that patients go to the hospital to check blood calcium and bone density to see if they are caused by calcium deficiency, which can be supplemented in time, while calcium supplementation can also prevent osteoporosis. Patients should usually pay attention to keep warm, avoid getting cold, exercise gradually and avoid overexertion.