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W, female, 45 years old, lower abdominal pain for nine years, perineal pain for 14 years, accompanied by
menstrual pain, sexual intercourse pain, frequency and urgency, particularly in the
menstrual period, after hospital treatment, are not effective, pain remains ,can't lateral thigh, can not walk step.
Clinical examination: straight-leg raising test both are 70 °, the roots of bilateral thigh have severe pain.