Elderly patients with calf soreness is nothing more than the following reasons: 1, lumbar disc herniation or lumbar spinal stenosis, herniated intervertebral discs, hypertrophied ligamentum flavum, hyperplasia of the spinal column small joints, as well as lumbar vertebrae of the slipped vertebrae, resulting in lumbar spinal canal stenosis, the dural sac is compressed because of ischemia leading to the stimulation of the nerves within, often manifested as soreness of the gastrocnemius muscle of the lower leg, the dorsum of the lateral foot of the lower leg or plantar numbness.2, lower limb Poor blood flow, commonly seen in patients with varicose veins or thrombotic occlusive vasculitis in the elderly, poor blood flow in the lower limbs, easy ischemia of the gastrocnemius muscle after a short distance walking, resulting in soreness.3, fatigue or cold, if the elderly walk too much during the day, or sleep at night when the calf muscles are cold, resulting in spasm of the gastrocnemius muscle, there will also be soreness.4, unexplained electrolyte disorders, resulting from diseases of the endocrine system Electrolyte disorders, such as low potassium and low sodium, may lead to generalized weakness and soreness.