Adductor Tendinitis is a painful problem in the hip that usually occurs with sports injuries or injuries occurring using gym equipment.  The adductor group of muscles includes the adductor magnus, minimus, brevis, and longus as well as the gracilis and pectineus.  During exercise or sports, these muscles can become stretched and injured.  The junction between the muscle and its tendon is particularly susceptible to injury.  All of the adductor muscles are innervated by the obturator nerve (L2-L4) except the pectineus, which is innervated by the femoral nerve (L2-L4). The adductor magnus also is innervated by the tibial nerve (L4-S3).  The pain of adductor tendinis occurs mainly in the groin area.  The intensity can be moderate to severe.  There are numerous other causes of hip pain such as osteitis pubis, iliopsoas strain, conjoined tendon lesion and obturator neuropathy and these must be excluded.  The workup of adductor tendinitis includes X-rays of the hip, MRI scan, EMG and NCV to look both for the cause of pain and eliminate potential other diagnostic considerations.  Treatment begins with conservative modalities including rest, heat, ice, physical therapy and non-steroidal anti-inflammatory medications.  Injection of a solution of a local anesthetic with a steroid into the painful area may be useful.  Surgery is only indicated if there is a rupture of the tendons.