Differential Diagnosis for Swollen Hand without Trauma
- Single most likely diagnosis
- Cellulitis: This is a common cause of swollen hand without trauma, often resulting from a bacterial infection that can spread from a small break in the skin.
- Other Likely diagnoses
- Insect bite or sting: Certain insect bites or stings can cause significant swelling in the affected area.
- Allergic reaction: An allergic reaction to a substance can cause swelling, redness, and itching in the hand.
- Infection of the hand (e.g., paronychia, felon): Infections of the skin or soft tissues of the hand can cause swelling, pain, and redness.
- Gout: Although more commonly associated with the feet, gout can also affect the hands, causing swelling, pain, and redness.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Necrotizing fasciitis: A rare but life-threatening infection that can cause swelling, pain, and skin necrosis.
- Compartment syndrome: A condition where increased pressure within the muscles of the hand can lead to nerve and muscle damage.
- Sepsis: A systemic infection that can cause swelling, fever, and other systemic symptoms.
- Rare diagnoses
- Sarcoidosis: A rare autoimmune disorder that can cause swelling and inflammation in various parts of the body, including the hands.
- Erythromelalgia: A rare disorder that causes burning pain, heat, and swelling in the hands and feet.
- Complex regional pain syndrome (CRPS): A rare condition that causes chronic pain, swelling, and skin changes in the affected limb.