Differential Diagnosis for Left Forefoot Swelling, Redness, and Pain
Single Most Likely Diagnosis
- Cellulitis: This is a common bacterial skin infection that can cause redness, swelling, and pain in the affected area. The forefoot is a common site for cellulitis, especially if there is a break in the skin.
Other Likely Diagnoses
- Ingrown Toenail: An ingrown toenail can cause pain, redness, and swelling in the forefoot, especially if it becomes infected.
- Gout: Gout is a type of arthritis that can cause sudden, severe pain and swelling in the joints, often in the big toe.
- Bursitis: Inflammation of the bursae (fluid-filled sacs) in the forefoot can cause pain, redness, and swelling.
- Plantar Fasciitis: Inflammation of the plantar fascia (a band of tissue on the bottom of the foot) can cause pain and swelling in the forefoot.
Do Not Miss Diagnoses
- Osteomyelitis: A bone infection that can cause pain, redness, and swelling in the affected area. If left untreated, it can lead to serious complications.
- Deep Vein Thrombosis (DVT): A blood clot in the deep veins of the leg can cause swelling, redness, and pain in the forefoot. If the clot breaks loose, it can be life-threatening.
- Septic Arthritis: A bacterial infection of the joint can cause severe pain, redness, and swelling. If left untreated, it can lead to joint destruction and serious complications.
Rare Diagnoses
- Erythromelalgia: A rare disorder that causes burning pain, redness, and swelling in the hands and feet.
- Complex Regional Pain Syndrome (CRPS): A rare condition that causes chronic pain, redness, and swelling in the affected area.
- Lymphoma: A type of cancer that can cause swelling, redness, and pain in the affected area, although this is a very rare cause of forefoot swelling.