07. lump or swelling anywhere
A lump or swelling anywhere on the body needs investigation too. This includes under the arms, in the neck, abdomen, groin or chest area.
Most are harmless and can be left alone, but should be checked by a GP so the cause is known.
Generally a lump or swelling that appears suddenly and is painful is usually caused by an injury or infection.
Only rarely is it an early sign of leukaemia or lymphoma.