Find out when your urine albumin to creatinine ratio (ACR) should be measured. ACR values can help identify kidney disease that occurs as a complication of diabetes.
An ultrasound scan, sometimes called a sonogram, is a procedure that uses high-frequency sound waves to create an image of part of the inside of the body.
Sudden, noticeable weight loss can often happen after a stressful event like a divorce, redundancy or bereavement. In some cases it can also be a sign of a serious illness.
Find out about urinary tract infections (UTIs), including what the symptoms are, when to get medical advice and how they're treated.
Find out about ulcerative colitis, a long-term (chronic) condition where the colon and rectum (large intestine or large bowel) become inflamed.
A hernia occurs when an internal part of the body pushes through a weakness in the muscle or surrounding tissue wall.
Read about an underactive thyroid gland (hypothyroidism), which is when your thyroid gland does not produce enough hormones.
Undescended testicles are a common childhood condition where a boy's testicles are not in their usual place in the scrotum. It's estimated that about 1 in every 25 boys are born with undescended testicles.
Read about a urinary catheter, which is a flexible tube used to empty the bladder and collect urine in a drainage bag.
Read about urinary incontinence, which is the unintentional passing of urine. It's a common problem that's thought to affect millions of people worldwide.
Find out about uveitis, a rare condition that causes inflammation of the middle layer of the eye, known as the uvea or uveal tract.