The cause of nighttime leg cramps in women may be due to cold, lack of calcium, osteoporosis, etc., and can be given hot compresses, calcium supplements and other treatments. 1. Cold: Cold can cause leg cramps at night. Cold can cause muscle spasms, which can easily lead to leg cramps, so you can apply hot compresses and massage to relieve the muscle spasms. 2. Calcium deficiency: children in the developmental period due to rapid growth, the body calcium can not meet the body’s growth needs, there will be leg cramps, this time should be supplemented with calcium, such as eating calcium-rich foods, if necessary, can be under the guidance of the doctor to take calcium and vitamin D oral. 3. Osteoporosis: Osteoporosis often occurs in older women due to hormonal effects, which can also cause leg cramps, and can be supplemented with calcium and vitamin D as prescribed by the doctor. If the symptoms persist, please go to the hospital in time, and standardize the treatment under the doctor’s guidance.