A cataract forms when the natural lens in your eye becomes cloudy. Modern surgery allows the damaged lens to be removed and replaced with an artificial lens.
A cystoscopy is a procedure in which a thin telescope (called a cystoscope) is used to look inside your bladder. This is inserted through the urethra, the tube that carries urine from the bladder to the outside of the body.
A hernia is a lump that forms when fatty tissue or part of your intestine (gut) pushes through a weakness in the muscle wall of your abdomen or top of your thigh.
A hysteroscopy is an operation to look at the inside of your womb (uterus). A narrow telescope (called a hysteroscope) lets your surgeon look at the inside of your womb.
A knee arthroscopy is a type of keyhole surgery. Your surgeon will put a narrow telescope through a small cut in your skin to look inside your knee joint.
A knee replacement is an operation in which your knee joint is replaced with an artificial joint. Most people stay in hospital for three to five days after knee replacement surgery.