First of all, it should be clear that calf swelling is a symptom, not a sign, a subjective feeling of the patient, not a condition that can be clearly checked clinically. There are several reasons for the swelling of the calf: 1, vascular factors: varicose veins, deep venous valve insufficiency, can cause lower limb soreness, first of all, exclude vascular factors; 2, intervertebral disc compression caused by nerve root soreness, mainly because after the lumbar disc herniation compression of the nerve root, causing local and distal dominant area of the corresponding vascular, nerve changes, local inflammatory release and The local chemical reaction of the nerve roots, which overall stimulates the sensory nerve uploading system, causes corresponding sensory abnormalities; 3. In middle-aged and elderly patients, neurosis is not excluded. Clinically, patients can be seen to have soreness and swelling in the lower extremities, but examination of the corresponding segments of the cervical, thoracic, and lumbar spine does not reveal the presence of corresponding lesions. In menopausal patients there are corresponding symptoms whose etiology cannot be clinically detected. It is important to consult a specialist for a diagnosis of the cause of the soreness and swelling in the lower legs. Once the cause is identified, treatment should be tailored to the disease.