Meatal stenosisUrethral meatal stenosis
Meatal stenosis is a narrowing of the opening of the urethra, the tube through which urine leaves the body.
Meatal stenosis can affect both males and females, but it is more common in males.
In males, it is often caused by swelling and irritation (inflammation) after a newborn is circumcised. This leads to abnormal tissue growth and scarring across the opening of the urethra. The problem is usually not found until the child is toilet trained.
In females, this condition is present at birth (congenital). Although less common, meatal stenosis may also affect adult women.
- Abnormal strength and direction of urine stream
- Bed wetting
- Bleeding (hematuria) at end of urination
- Discomfort with urination or straining with urination
- Incontinence (day or night)
- Visible narrow opening in boys
Exams and Tests
In boys, a history and physical exam are enough to make the diagnosis.
Other tests may include:
In females, meatal stenosis can usually be treated in the health care provider's office. This is done using local anesthesia to numb the area. Then the opening of the urethra is widened (dilated) with special instruments.
In boys, a minor outpatient surgery called meatoplasty is the treatment of choice.
Most people will urinate normally after treatment.
- Abnormal urine stream
- Blood in the urine
- Frequent urination
- Painful urination
- Urinary incontinence
- Urinary tract infections
When to Contact a Medical Professional
Call for an appointment with your health care provider if your child has symptoms of this disorder.
If your baby boy has recently been circumcised, try to keep the diaper clean and dry. Avoid exposing the newly circumcised penis to anyirritants. They may cause inflammation and narrowing of the opening.
Jordan GH, McCammon KA. Surgery of the penis and urethra. In: Wein AJ, ed. Campbell-Walsh Urology. 10th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 36.
Elder JS. Anomalies of the penis and urethra. In: KliegmanRM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 19th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 538.
Female urinary tract - illustration
Female urinary tract
Male urinary tract - illustration
Male urinary tract
Meatal stenosis - illustration
Review Date: 10/9/2012
Reviewed By: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington. Louis S. Liou, MD, PhD, Chief of Urology, Cambridge Health Alliance, Visiting Assistant Professor of Surgery, Harvard Medical School. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.