- Achilles tendon rupture
An Achilles tendon rupture causes pain in the back of the ankle, swelling, bruising, and a popping sound.
- Sprained ankle
An ankle sprain is an injury the ligaments in the foot causing pain, tenderness, swelling, and bruising.
- Hematoma
A hematoma is a collection of blood in the tissue outside of a damaged blood vessel, usually after an injury.
- Broken (fractured) ankle
A broken ankle is a break in a bone that meets at the ankle joint and causes pain, bruising and swelling.
- Cellulitis
Cellulitis, a bacterial infection of the skin, causes red, tender skin that is usually swollen and warm.
- Sarcoidosis
Sarcoidosis is a rare disease that can cause swelling and hard lumps in the lymph nodes and organs.
- Scleroderma
Scleroderma is an uncommon immune disorder that causes collagen to build up in the tissue, making it harden.
- Abscess
A skin abscess, or boil, is a swollen, painful, red and warm lump of skin that may rupture and drain pus.
- Bruise or contusion
Bruises, or contusions, cause skin discoloration, swelling and tenderness.
- Pseudogout
Pseudogout is a type of arthritis similar to gout, where crystals form in the joints, causing swelling and pain.
- CREST syndrome
CREST syndrome is a rare autoimmune disease that causes tissues to harden throughout the body.