Excessive vaginal discharge that smells foul

Anderson MR, et al. Trichomoniasis is caused by a tiny single-celled organism known as a protozoa. Risk factors for bacterial vaginosis include:. The most common cause is an allergic reaction or irritation from vaginal sprays, douches or spermicidal products.

Office on Women's Health. Work with your doctor or other health care professional for an accurate diagnosis. As a result, the yeast overgrows and causes the infection. In addition, the long-term use of over-the-counter topical products to help block odor and itch can cause vaginitis. Chlamydia and gonorrhea infections usually don't cause vaginal odors.

References Bacterial vaginosis — CDC fact sheet. Mayo Clinic Health Letter. However, visible warts are not always present, and the virus may only be detected when a Pap test is abnormal. These can be caused by organisms like yeast, or by irritations from chemicals or sprays.