Pain in the pelvic region is a common reason for people to seek medical advise, and sometimes it does require medical treatment. The doctors who will be well qualified to discuss this with you include your primary care doctor
or a sports medicine doctor
if you think it is exercise related. The most common type of tendonitis that is found in the pelvic region is tendonitis of some of the hip muscles. Many of the hip muscles originate within the pelvis, which can lead to referral of the pain to that region. Two common forms include adductor tendonitis and ileopsoas tendonitis. These injuries are much more common in athletes and others who exercise regularly but can occur in anyone. Other causes of musculoskeletal pain in this region include hip arthritis, which is common in middle aged to older adults and usually manifests as aching pain with exercise (even just walking) that is worse after activity. Similarly, inflammation of the joint between the spine and the pelvis, called the sacroiliac joint, is very common. As always the diagnosis and the management of your particular concern will require a physical examination by your personal physician. Setting up an office visit with your primary care doctor is highly recommended.