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Learn about a kidney biopsy, a procedure in which a health care professional takes small pieces of tissue from your kidney to look for signs of damage or disease.

Learn more about overweight and obesity among adults, including causes, related health risks, and treatments.

Urologists use cystoscopy and ureteroscopy to look inside the urinary tract, find the cause of problems, and sometimes treat them.

Read about bladder infections, as well as pain and urgency with urination, in children. Learn about the symptoms, causes, diagnosis, and treatments.

Erectile dysfunction (ED) is a condition that prevents you from getting or keeping an erection firm enough for sex. Describes symptoms, causes, and treatment.

A fact sheet about genetic testing for inherited cancer risk. Includes who should consider testing, and how to understand test results.

A fact sheet about asbestos, asbestos-related diseases, and who to contact for more information.

Other than skin cancer, breast cancer is the most common cancer among American women. Getting mammograms regularly can lower the risk of dying from breast cancer.

Research indicates disparities in risky health behaviors between heterosexual and sexual minority (referred to as LGBQ; also known as lesbian, gay, bisexual, queer, and questioning) youth. Limited data are available for tobacco-use–related behaviors beyond smoking status. We compared data on tobacco age of initiation, product use, and secondhand smoke exposure between general population and LGBQ youth.

In Tunisia, few studies have assessed the association between tobacco use and other lifestyle risk factors for chronic disease (eg, unhealthy diet, physical inactivity). We studied 1,880 adults to determine the association between tobacco use and other lifestyle risk factors in Tunisia.