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> > Conditions

Conditions

A woman holding the back of her neck

There are about 200 different musculoskeletal conditions. Arthritis is a term used by doctors to describe inflammation within a joint, while rheumatism is a more general term that's used to describe aches and pains in or around the joints. Because there are many possible causes of these pains doctors don't often use the term rheumatism and will usually refer to these problems either by a specific diagnosis or according to the part of the body affected. Doctors sometimes use the term 'musculoskeletal conditions' or 'the rheumatic diseases' to refer to a whole range of conditions that affect the joints. 

Browse by letter for your condition

O

  • A guide for teenagers

    Oligoarthritis

    Oligoarthritis is the most common type of juvenile idiopathic arthritis (JIA) affecting about two-thirds of young people with arthritis.

  • Osteoarthritis

    Osteoarthritis

    Osteoarthritis is the most common form of joint disease. It causes joint pain and stiffness. We explain its causes, diagnosis and treatment, and the importance of self-help measures.

  • A man holding his knee

    Osteoarthritis of the knee

    The knee is one of the joints most commonly affected by osteoarthritis. In this section we explain a bit more about what causes it and how it’s diagnosed and treated.

  • Osteomalacia

    Osteomalacia

    Osteomalacia can cause bone pain and muscle weakness. It's often caused by lack of vitamin D. We explain a bit more about what causes it and how it’s diagnosed and treated.

  • Osteoporosis

    Osteoporosis

    Osteoporosis is a condition that causes the bones to become fragile, so that they break more easily. We explain a bit more about what causes it and how it’s diagnosed and treated.

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For more information, go to www.arthritisresearchuk.org.
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