Forearm pain and swelling: what to know

Swelling after a knock, fall, or sudden load can reflect bruising, a sprain, or a more significant injury. Repeated gripping, wrist movement, or lifting may irritate the tendons near the elbow and forearm. Golfer's Elbow affects tissues on the inner elbow, while Tennis Elbow affects tissues on the outer elbow; either can cause pain that travels into the forearm. Infection, a blood-vessel problem, or a fracture is less common but needs medical attention. Compare both arms without pressing hard, and notice whether the skin is hot, red, bruised, or unusually tense.

Rest from lifting and repetitive gripping, raise the arm when comfortable, and use a wrapped cold pack briefly at a time during the early phase of a minor injury. Keep the fingers moving gently so they do not become stiff, but avoid forceful stretching over swollen tissue. Remove tight rings or bracelets. A clinician can decide whether you need an examination, X-ray, or treatment for a tendon or joint problem. Medicines are safest when chosen with advice that considers your health and other medicines.

Get urgent help if swelling increases quickly, the forearm feels very tight, pain is severe or out of proportion, or the hand becomes cold, pale, blue, numb, or weak. Seek prompt care for fever with redness or warmth, pus, or a wound. After a fall or blow, an altered shape or inability to use the wrist or fingers may signal a fracture.

Could this be a tendon irritation, sprain, or fracture? What movements should I pause, and when can I resume them? How should I monitor the swelling? Would physiotherapy or imaging help?