Epididymitis is infection or less frequently, inflammation of the epididymis (the coiled tube on the back of the testicle). The majority of men that develop epididymitis develop it because of a bacterial infection. Although males of any age can develop epididymitis, it occurs most frequently between ages of 20 to 39. When it develops in children, it is usually due to inflammation caused by trauma.
Medical Definition of vaginal. 1  1: of, relating to, or resembling a vagina : thecal a vaginal synovial membrane surrounding a tendon. 2  2a: of, relating to, or affecting the genital vagina vaginal discharge vaginal infectionb: occurring through the birth canal a vaginal delivery a vaginal birth.
Structure: The vagina is a muscular passage that leads from the vulva to the neck of the womb (cervix). It connects the internal reproductive organs with those on the outside of the body. During sexual activity the blood vessels in the vaginal walls fill with blood causing them to swell and become engorged.