Hot and cold for knee pain

Cold may reduce the feeling of pain and can be comforting when the knee becomes irritated or swollen after activity. Heat may loosen stiffness and make gentle movement easier, especially when the knee feels tight rather than hot and acutely swollen.

These methods do not reveal the cause of knee pain. Symptoms can occur with problems involving cartilage, tendons, bursae, ligaments or the joint itself. A warm or cool sensation should not be used to decide that a knee is safe to load after an injury.

Place a cloth between the skin and the pack, choose a tolerable temperature and inspect the skin during use. Support the leg comfortably, avoid forceful stretching, and return to activity gradually. If movement causes sharp pain, catching or giving way, stop and arrange advice.

Note when pain appears, whether swelling follows activity, and whether the knee locks or buckles. This information helps a clinician decide whether examination or imaging is appropriate. People with reduced sensation or circulation problems should ask for individual guidance before using temperature therapy.

Get prompt assessment after a twist, fall or impact if the knee swells quickly, cannot bear weight, locks, gives way or looks misshapen. Seek urgent help for a hot red knee with fever, sudden severe pain, or a swollen calf with chest pain or breathlessness.

Does my knee need examination after this injury? Is heat or cold more suitable for the current swelling and stiffness? What activity is safe? Which signs would mean I should return sooner?