Most patients who have suffered from pain and muscle weakness on femoral nerve distributing area show no definite pathologic finding on X-ray or laboratory examinations. Therefore proper diagnosis is difficult to determine for the proper treatment of the symptoms. Based on my clinical experiences and anatomical studies, I have found most of these symptoms are a result of femoral nerve compression on trigger point of psoas major muscle. Accordingly, releasing the compression of femoral nerve by Laser stimulation and local anesthetic injection to the identified trigger point of psoas major muscle was found to be an effective treatment for femoral neuralgic pain.