Leg cramps in the elderly generally refer to leg cramps, and there are many related factors, mainly calcium deficiency, lower limb blood circulation disorders, and other pathologies. 1. Calcium deficiency: Calcium deficiency is the most common cause of leg cramps in the elderly. The elderly are prone to osteoporosis and endocrine disorders (e.g. hypoparathyroidism) due to the decline of body functions, and these symptoms will lead to the appearance of hypocalcemia, which will lead to the emergence of leg cramps. 2. Lower extremity blood circulation disorders: most of the elderly lower extremity blood vessels have different degrees of hardening, reduced elasticity, narrowing and other problems, at this time, if stimulated, such as cold stimulation or excessive exercise, or long-term labor, the lower extremity of the blood supply is insufficient, resulting in vasoconstriction and spasm, which in turn causes cramps in the calves. 3. Other lesions: the elderly are more likely to suffer from degenerative changes in the spine, lumbar disc herniation and other diseases, these diseases can also cause leg cramps. If the elderly have leg cramps, they should go to the hospital in time to see a doctor and clarify the treatment.