The causes of cramps in the elderly are: 1. excessive exertion, deficiency of qi and blood, resulting in cramps due to loss of nourishment of the tendons and veins. 2. lack of calcium. 3. venous embolism in the lower limbs, resulting in impaired blood circulation and loss of moistening of the meridians. 4. herniated discs, degenerative lesions of the lumbar spine and compression of the leg nerves. 5. local cold leading to slow movement of qi and blood, resulting in cramps due to loss of nourishment of the blood veins. 6. cramps due to failure of blood supply after strenuous exercise. Therefore, it is necessary to identify the cause of cramps. Therefore, it is necessary to identify the cause of cramps and actively treat the symptoms.