Sore calves are most likely caused by a calcium deficiency. Low calcium levels can lead to soreness, weakness and even cramping in the calves. Sometimes, if the soreness is accompanied by leg weakness, it may be related to transient insufficient blood supply to the lower limbs, and sometimes anemia can also cause the corresponding symptoms. Generally speaking, if you have the above symptoms, you should go to the internal medicine clinic of a regular hospital for examination. You can eat some foods with high calcium content, such as bone broth, shrimp skin, fresh fish, live shrimp, kelp, etc., and you should use some meat, fish and eggs to improve the blood supply problem. Because blood is sufficient for essence to flourish, do some local physical therapy can improve the calf weakness and soreness associated with qi deficiency, and if necessary, can apply calcium carbonate D3 and other drugs to treat.