Gluteus Medius Tendonitis (Gluteal Tendinopathy or Dead Butt Syndrome)

Summary

In simple terms, gluteus medius tendonitis, or “dead butt syndrome,” is irritation of a tendon on the outside of the hip. It causes pain on the side of the hip, especially with walking, climbing stairs, or lying on that side. Doctors usually diagnose it with a physical exam, and most people get better with exercises and physical therapy. Surgery is uncommon. With the right treatment, the hip muscles can become strong again and pain can improve.

Muscle and Tendon Anatomy of the Hip Joint

The hip is a ball-and-socket joint that connects the thigh bone (femur) to the pelvis. It allows the leg to move forward, backward, and sideways, and it supports the body’s weight when standing and walking. Several strong muscles surround the hip to help control movement and keep the pelvis stable (figure 1). Two important muscles on the outside of the hip are the gluteus medius and gluteus minimus. These muscles attach from the pelvis to the top of the thigh bone through strong cords of tissue called tendons. Their main job is to stabilize the pelvis when you stand on one leg, such as during walking or climbing stairs. They also help move the leg out to the side and keep the hips level.

Clinical Presentation

Gluteus medius tendonitis, also called gluteal tendinopathy or “dead butt syndrome,” occurs when the tendon that connects the gluteus medius muscle to the hip becomes irritated or damaged. This condition usually develops over time due to overuse, muscle weakness, or poor movement patterns. It can also occur after a sudden increase in activity, such as starting a new exercise program. People who sit for long periods, runners, and middle-aged women are more likely to develop this problem. The most common symptom is pain on the outside of the hip. The pain may worsen when walking, climbing stairs, lying on the affected side, or standing on one leg. Some people also feel weakness or notice that their hip feels unstable.

Diagnosing Dead Butt Syndrome

Doctors diagnose gluteus medius tendonitis based on a patient’s history and physical exam. Pressing on the outside of the hip often causes tenderness. Standing on one leg may reproduce pain or show weakness. It may be a challenge to differentiate gluteus medius tendonitis from piriformis syndrome and trochanteric bursitis two conditions which may present with similar symptoms, but in a slightly different location.

Imaging is not always needed, but it may help confirm the diagnosis if symptoms are severe or do not improve. X-rays are sometimes taken to rule out hip arthritis or other bone problems. An MRI or ultrasound can show inflammation, tendon thickening, or small tears in the gluteus medius or minimus tendons. These tests are helpful if a more serious tendon tear is suspected.

Treatment of Gluteus Medius Tendonitis

Treatment usually begins without surgery. The most important part of treatment is a guided exercise program that focuses on strengthening the hip muscles and improving movement patterns. Physical therapy helps correct muscle imbalances and reduce stress on the tendon. Activity changes, such as reducing running or avoiding crossing the legs while sitting, may also help. Anti-inflammatory medications and ice can reduce pain in the short term. In some cases, a corticosteroid injection may provide temporary relief. Surgery is rarely needed but may be considered if there is a large tendon tear or if symptoms do not improve after many months of conservative treatment.

Edited by Stephen Pinney MD, February 22nd 2026.