Calf pain after waking up in the morning may be due to incorrect sleeping position at night, lack of calcium in the body, or after heavy exercise. 1. Incorrect sleeping position Sleeping in an incorrect position at night causes the calf area to be compressed for a long time, or the calf area is cooled during the night sleep, which triggers the occurrence of soreness. 2. Calcium deficiency Calcium deficiency is characterized by poor sleep, fatigue, back pain or cramps in the calves, which can also lead to pain in the calves after getting up in the morning. 3. After heavy exercise After a large amount of physical activity, the next day after getting up may appear calf pain, this is due to strenuous activities lead to anaerobic respiration, which in the muscle produced a large number of lactic acid deposits, this will stimulate the production of soreness. In daily life, appropriate supplementation of calcium; should be moderate exercise, avoid sedentary or standing for a long time. Calf soreness, you can appropriate massage, local hot packs, promote blood circulation, so that the muscles are relaxed. If the situation of getting up in the morning with sore calves occurs for a long time, it is recommended to consult a doctor in a timely manner to clarify the cause of the disease, and to be treated accordingly.