Menstruation, periodic discharge from the vagina of blood, secretions, and disintegrating mucous membrane that had lined the uterus. 1  The biological significance of the process in humans can best be explained by reference to the reproductive function in other mammals.
Chlamydia is a common sexually transmitted disease (STD) caused by infection with Chlamydia trachomatis. It can cause cervicitis in women and urethritis and proctitis in both men and women.
Chlamydia. Chlamydia, caused by the bacterium Chlamydia trachomatis, is the most commonly notified STI in Australia. The infection in women can cause cervicitis, endometritis, and pelvic inflammatory disease, which can lead to tubal factor infertility and ectopic pregnancy.In men, it can cause urethritis, epididymo-orchitis, and prostatitis. Azithromycin treatment for chlamydial infection has been a major advance in recent years.exually transmissible infections (STIs) are spread by heterosexual or homosexual contact with an infected person. STIs are caused by microorganisms that are transmitted from one person to another through semen, fluid from the vagina, anal or throat secretions, and blood.