Leg cramps during menstruation can not be too nervous, occasionally a leg cramp is a normal situation, you do not have to be treated, the main reasons are as follows: First, it may be weak qi and blood, the body is too fatigue; Second, it may be too much exertion during the period of menstruation or cold lead to muscle spasms, which caused by leg cramps, pain, and other symptoms; Third, if you are often deficient in calcium, the body function is relatively poor, there may be leg cramps symptoms, mainly due to the lack of calcium ions will cause muscle excitation, thus triggering spasms and other problems. Third, if you often lack of calcium, the body function is relatively poor, there may be leg cramps, mainly due to the lack of calcium ions, will cause muscle excitation, thus triggering spasms and other problems, it is recommended to take more calcium tablets can improve the symptoms; fourth, may be caused by other diseases, such as systemic diseases, etc., it is recommended to observe the physical symptoms, and then symptomatic treatment, usually pay attention to more rest, it is best not to be too fatigued.