65-year-old leg cramps consider muscle spasms, calcium deficiency, lower extremity vascular stenosis, for the cause of the drug treatment, physical therapy or surgical treatment. 1. Muscle spasm: too much exercise or catching cold can cause leg cramps, need to rest, take hot compresses, massage, medium frequency pulse physiotherapy. 2. Calcium deficiency: Older people are prone to leg cramps caused by calcium deficiency, usually occurring at night, which can be improved by supplementing calcium tablets and vitamin D as prescribed by the doctor. 3. Lower extremity vascular stenosis: lower extremity vascular stenosis caused by insufficient blood supply leg cramps, the application of vasodilating drugs such as beziridine sodium tablets, serious stenosis of interventional stent surgery. So there are many reasons for leg cramps at the age of 65, you need to go to the hospital to check the cause for further treatment.