There are two types of arthritis that are more common than the rest: Osteoarthritis and rheumatoid arthritis. Rheumatism, affecting tendons, joints, bones and nerves, includes rheumatoid arthritis and common conditions such as fibrositis, lumbago, sciatica and neuritis. Gout is another type of arthritis and it more frequently plagues men than women. Gout develops a result of an increase in uric acid in the body and there are several treatments that can help remove uric acid and treat gout. Fibromyalgia is a much misunderstood condition which is hard to diagnose. Often labelled as being in the mind of the sufferer, Fibromyalgia is really very physical, despite it having neurological origins. Around 90 per cent of the sufferers are female, and the often involuntary pain it is centred on the central nervous system..