Anatom3DSciatic bursa of obturator internus
Bursa ischiadica musculi obturatorii interni · Sedací burza vnitřního ucpávkového svalu
Joints & cartilage
Looks like
A sac between the obturator internus tendon and the lesser sciatic notch, where the tendon turns a sharp corner.
What it does
Lets the tendon glide around the bony corner like a rope over a pulley.
Keeping it well
Rarely a separate problem; can contribute to deep buttock pain.
Related conditions
- Chronic venous insufficiency
- Gout
- Haemophilia & bleeding disorders
- Lyme disease
- Lymphatic filariasis (elephantiasis)
- Lymphoedema
- Marfan syndrome & connective tissue disorders
- Osteoarthritis
- Polymyalgia rheumatica
- Psoriatic arthritis
- Restless legs syndrome
- Rheumatic fever & rheumatic heart disease
- Rheumatoid arthritis
- Systemic lupus erythematosus
- Temporomandibular joint disorder
- Varicose veins