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U
- Ultrasound scan
- A test that uses sound waves to make a picture of the inside of part of the body. See ultrasound scan section.
- Ultraviolet radiation (UV rays)
- Invisible light rays from the sun. UV-A and UV-B penetrate the Earth’s atmosphere, and cause the skin to age, and to tan or burn. This damage can lead to skin cancer.
- Unknown primary tumour
- Sometimes cancer is found in the body, but doctors can't work out where it first started to grow. This type of cancer may sometimes be called unknown primary tumour.
- Ureter
- The tube that leads from the kidney to the bladder.
- Urethra
- The tube leading from the bladder to the outside of the body. Urine passes through this tube.
- Urologist
- A doctor who specialises in treating diseases of the urinary tract.
- Urostomy
- If your bladder is removed, you will need a new way of collecting urine. One way is through a urostomy. The surgeon makes an opening (stoma) on the wall of the abdomen. A bag can be fixed around the opening to collect the urine.
- Uterus
- Another name for the womb. The uterus is a body organ found in a woman's pelvis, above the vagina. It is where a woman's egg, fertilised by male sperm, grows into a baby. There are different types of cancer of the uterus. The most common type - endometrial - starts in the lining of the uterus. See cancer of the uterus section.
