Gout is a type of arthritis in which small crystals form inside and around the joints. It causes sudden attacks of severe pain and swelling. It's estimated that between one and two in every 100 people in the UK are affected by gout. The condition mainly affects men over 30 and women after the menopause. Overall, gout is more common in men than women. Gout can be extremely painful and debilitating, but treatments are available to help relieve the symptoms and prevent further attacks.