The twitching of the foot that moves involuntarily while sleeping may be due to physiological muscle twitching, calcium deficiency, restless leg syndrome, etc., and is mainly treated with medication. 1. Physiological muscle twitching: In times of tension, stress or fatigue, the whole body or local muscles will suddenly twitch for a short period of time, like an electric shock, which is more likely to occur at night during sleep. It can be manifested as involuntary movement of the foot or twitching while asleep, and generally does not require special treatment. 2. Calcium deficiency: when the amount of calcium intake is not enough to maintain growth and development, it will lead to contracture of the gastrocnemius muscle, causing jerks and involuntary movement of the feet or twitching during sleep. Calcium can be supplemented by oral calcium gluconate, calcium lactate, etc., and you can get more sunshine daily. 3. Restless Legs Syndrome: Involuntary twitching of the legs caused by anemia, renal dysfunction, etc. can also lead to involuntary twitching of the feet at intervals of dozens of seconds while the patient is asleep. Symptoms can be improved by supplementing iron, folic acid, etc., and severe cases can be treated with blood transfusion. If this symptom occurs frequently, it is recommended to go to the hospital in time for the relevant examination, under the guidance of the doctor for treatment.