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Watch Back pain - Learn more

Watch Back pain - Learn more

Back pain - Learn more

Muscles, bones and joints collection • 1m 5s

Up Next in Muscles, bones and joints collection

  • Baker's cyst - Learn more

    Baker's cyst is an abnormal swelling at the back of the knee due to a build-up of fluid within a bursa. A bursa is a fluid-filled sac that reduces friction at a joint. Injury or disease causes this condition which can be painful and reduce movement at the joint.

  • Bunions - Learn more

    A bunion forms when the big toe changes its normal alignment, so that it points inwards towards the second toe. This misalignment puts pressure on the joint at the base of the big toe and a bony lump can form on the outer side of the toe where it meets the foot. Bunions can become red, swollen an...

  • Bursitis - Learn more

    Bursitis is swelling and irritation of your bursa. Bursa are small sacs filled with synovial fluid that help reduce the friction when tendons or ligaments rub against other structures, such as bones, muscles and skin.