10 conditions
Ulcerative colitis
Ulcerative colitis is a long-term condition, where the colon and rectum become inflamed. It can develop at any age, but most often occurs in people between 15 and 25 years old. See your GP if you haven't been diagnosed with ulcerative colitis and you have the symptoms, see below.Related conditions
Underactive thyroid (hypothyroidism)
An underactive thyroid gland (hypothyroidism) means your thyroid gland doesn't produce enough thyroid hormone. The thyroid gland is a small butterfly-shaped gland in the neck, just in front of the windpipe (trachea). Both men and women can have an underactive thyroid, although it's more common in women than in men.Related conditions
Undescended testicles
Undescended testicles are a common childhood condition where a boy's testicles are not in their usual place in the scrotum. See your GP if, at any point, you notice that one or both of your child's testicles are not in the normal place within the scrotum.Unintentional weight loss
Sudden, noticeable weight loss can happen after a stressful event. It can also be a sign of a serious illness. The information on this page may give you a better idea of the cause of your weight loss. Don't use it to diagnose yourself. See your GP for a diagnosis.Urinary catheterisation
A urinary catheter is a flexible tube used to empty the bladder, collecting urine in a drainage bag. They can be inserted through the tube carrying pee out of the bladder (urethral catheter) or through a small opening in your tummy (suprapubic catheter). The catheter usually remains in the bladder.Urinary incontinence
Urinary incontinence is the unintentional passing of urine (pee). It's a common problem. Health Trusts in Northern Ireland provide services to the public for help and support with incontinence issues. Seeking help can be the first step towards finding a way to manage the condition.Related conditions
Urinary tract infections in adults
Urinary tract infections (UTIs) are very common. Most UTIs are caused by bacteria and they can be painful and uncomfortable. But they usually pass within a few days or can be easily treated with a course of antibiotics. UTIs are more common in women than men.Urinary tract infections in children
Urinary tract infections (UTIs) are some of the commonest bacterial infections that GPs treat. UTIs are more common in adults than in children. They can be painful and uncomfortable. But they usually pass within a few days or can be easily treated with a course of antibiotics.Urticaria (hives)
Urticaria (hives) is a raised, itchy rash that appears on the skin. Children are often affected by the condition, as well as women aged 30 to 60, and people with a history of allergies. Hives rashes usually improve within a few minutes to a few days.Related conditions
Uveitis
Uveitis is inflammation of the middle layer of the eye, called the uvea or uveal tract. It can cause eye pain and changes to your vision. Contact your GP immediately if you have persistent eye pain or an unusual change in your vision, particularly if you've had uveitis before.Related conditions