Leg cramps are most likely due to a calcium deficiency. You can visit your local hospital for an ion series on an empty stomach to see if there is a calcium deficiency when appropriate. If there is a calcium deficiency, you can take calcium gluconate, calcium carbonate and vitamin D3 orally to supplement the calcium ions. If the pain is unbearable, you can take ibuprofen or meloxicam orally to relieve the pain for about 5-7 days. At the same time, you need to pay attention to increase the muscle exercise to increase the calcium ion content in the muscle, you can do a leg press or leg extension action to maintain the elasticity and fullness of the muscle, which will play a certain help for the deposition of calcium ions.