What are the potential causes of swelling in the right arm and hand?

Swelling in the right arm and hand may result from:

Injury or trauma: Sprains, strains, fractures, or repetitive use can cause swelling. Infections: Skin infections like cellulitis or abscesses can lead to swelling, redness, and warmth. Blood clots (deep vein thrombosis): Clots can block blood flow in veins of the arm and hand, causing swelling. Lymphedema: Blockage or damage to lymphatic vessels, often after surgery or radiation, may cause fluid buildup. Allergic reactions: Bites, stings, or exposure to allergens can cause localized swelling. Venous insufficiency: Poor blood flow can lead to fluid accumulation in the arm and hand. Systemic causes: Conditions affecting heart, kidney, or liver function can lead to swelling, often on both sides but sometimes more noticeable on one side.

If swelling is sudden, painful, worsening, or associated with other symptoms like fever or difficulty moving the arm or hand, seek medical care promptly.