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Some of the less common causes of Thigh pain may include: 1  Referred pain of ureteric calculus. 2  Referred pain of strangulated femoral hernia. 3  Fracture of neck of femur.  Fracture of shaft of femur.
Quick Answer. Inner thigh cramps can be caused by straining or overusing a muscle; deficiencies of dietary minerals such as calcium; insufficient blood circulation in the muscles; and dehydration, according to MedlinePlus. Extended periods of intense exercise and physical labor can cause muscle cramps throughout the body, notes Mayo Clinic.