Calf stiffness and tightness can be treated with general treatment, medication, physical therapy and surgery according to the cause, and the common causes include excessive exercise, vascular disease of the lower limbs, myofasciitis and so on. 1. Excessive exercise: due to infrequent exercise suddenly after a large amount of exercise, it is easy to cause calf stiffness, tightness, cramps. Should immediately rest, can carry out a certain amount of confrontation stretching, mostly can be relieved on their own. 2. Lower extremity vascular disease: due to varicose veins in the lower extremity can cause stiffness and tightness of the calf, you can relieve the symptoms through localized hot compresses and physiotherapy. Varicose veins can also be prevented by wearing varicose vein stockings and treated with venous active drugs such as hepcidin. If conservative treatment is not effective and the symptoms are severe, surgery such as high saphenous vein ligation is also feasible. 3. Myofasciitis: Chronic aseptic inflammation of calf muscle and fascia caused by muscle strain due to prolonged standing or exposure to cold, resulting in muscle stiffness, tightness and pain. To appropriate rest, work and rest, the calf muscle patting, massage, insist on doing high leg movement to reduce the symptoms, severe pain can be given ibuprofen for anti-inflammatory pain relief. There are many other causes of calf stiffness, tightness, such as lumbar disc herniation, trauma, etc., if the rest does not relieve, you should go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, and comply with the doctor’s instructions to actively treat, so as to avoid delaying the condition.