Vaginal discharge is a normal occurrence for women. Healthy discharge is a clear or whitish substance that is made up of cells and fluids produced by the vagina, uterus, or cervix. Normal discharge is produced by these organs to clean and protect the vagina and support fertility. The consistency and color of vaginal discharge may vary depending on your menstrual cycle and your age. For instance, the liquid produced by the cervix may be stretchier or more mucus-like when you are ovulating.

Discolored, foul-smelling, or thickened vaginal discharge may signify an infection. If you are experiencing abnormal discharge, talk to a doctor. Common causes of abnormal discharge include:

- Bacterial vaginosis: Caused by a common bacteria, this infection produces a white, fishy-smelling discharge. In some cases, bacterial vaginosis may produce no symptoms at all. Women who have multiple sexual partners or have received oral sex have an increased risk of bacterial vaginosis.

- Yeast infection: Yeast infections are common fungal infections that produce a thick, white cottage cheese-like discharge. Stress, antibiotic usage, pregnancy, and diabetes may put you at greater risk of a yeast infection.

- Trichomoniasis: Trichomoniasis is spread through sexual contact or contact with sheets or towels that are carrying the pathogen. This infection may cause pain as well as a foul-smelling yellow or greenish discharge.

- Chlamydia and Gonnorhea: These sexually transmitted infections can cause abnormal vaginal discharge that is cloudy or yellowish.

Abnormal vaginal discharge may also be caused by irritation or a rash, such as contact dermatitis.

If you are experiencing unusual vaginal discharge, or if you have symptoms such as itching and swelling, talk to a doctor right away. These are common signifiers of vaginal infection and should be treated quickly.