A new rapid urine test for chlamydia in men identified 84% of infections, according to a study of 1,200 men published Tuesday in the British Medical Journal, Reuters reports. Chlamydia is the most common sexually transmitted infection among women and can be treated easily with antibiotics. However, the STI often goes undiagnosed and causes no symptoms in 70% of cases. It can lead to pelvic inflammatory disease, ectopic pregnancy and infertility. It also can make women more vulnerable to HIV.

Rapid tests for chlamydia in men often have been inconclusive and uncomfortable, involving a painful swab of the urethra. The developer of the new test, Helen Lee of the University of Cambridge, said, "This has led to many cases of infection in men going undiagnosed and being transmitted to their female partners, with potentially more serious complications." The new test is "both accurate and swift, allowing men attending the clinics.