Thigh cramps are mainly seen in the following conditions: 1. It is hypocalcemia. Calcium deficiency can appear as abnormal muscle contraction, leading to thigh cramps. It is more common in pregnant women, the elderly, children and teenagers, especially the elderly combined with osteoporosis is easy to appear. 2, after excessive exercise, resulting in muscle metabolites are not consumed in time to stimulate leg cramps. 3, cold, cold legs can cause muscle regulation instability, appearing abnormal excitement contraction. The actual fact is that you can be able to get a lot more than just a few of these.