Subcutaneous bursa of lateral malleolus

Looks like

A sac between the skin and the outer ankle bone.

What it does

Lets the skin glide over the bony point.

Keeping it well

Swells with shoe or skate pressure; padding usually helps.

Related conditions

• Buerger's disease (thromboangiitis obliterans)
• Chronic venous insufficiency
• Clubfoot (talipes equinovarus)
• Flat feet (pes planus)
• Ganglion cyst
• Gout
• Haemophilia & bleeding disorders
• Hammer toe and claw toe
• Lyme disease
• Lymphatic filariasis (elephantiasis)
• Lymphoedema
• Marfan syndrome & connective tissue disorders
• Morton's neuroma
• Osteoarthritis
• Psoriatic arthritis
• Restless legs syndrome
• Rheumatic fever & rheumatic heart disease
• Rheumatoid arthritis
• Systemic lupus erythematosus
• Temporomandibular joint disorder
• Varicose veins
• Venomous snakebite