Psoas (hip flexor) Tendinitis inflammation of the iliopsoas tendon caused by acute trauma or overuse of repetitive hip flexion. Pain is usually felt in the anterior (front) of the hip or groin area. Soccer players, football kickers and any sport involving repetitive hip flexion may suffer from this condition. A Note from the Doctor: We treat all tendonitis issues including psoas tendonitis with myotherapy, stretching, foam rolling, and rehabilitative exercises. The primary issue with any tendonitis is inflammation within the tendon and a lack of blood flow due to restrictions within the tissue. With myotherapy, we are able to break down these restrictions and create more blood flow to the injured area and allow the injury to heal quicker and more efficiently. Since most tendonitis problems are typically from overuse, rest may also be advised.