Vaginal odor typically arises from inflammation of the vaginal area which is often a result of infection in or around the vagina. Such inflammation is termed vaginitis. I recommend discussing this with a doctor
who can diagnose you and determine the cause. The most common cause of vaginitis is bacterial vaginosis. Bacterial vaginosis is characterized by a yellow, grey, or white vaginal discharge that may have a strong, unpleasant odor, often described as fishy. This odor may be more obvious after sexual intercourse or menstruation. However, there are factors that increase a person's risk of vaginitis. These include bubble baths, perfumed soaps, scented detergents, vaginal contraceptives, vaginal sprays, spermicidal products, and douches, etc. I strongly advise you to avoid douching. A vagina should contain lactic acid that is produced by bacteria called lactobacilli, making it slightly acidic to prevent other bacteria or fungal organisms from growing there. If there are fewer "good" bacteria (lactobacilli) the vagina may become less acidic and make the environment more favorable for the overgrowth of bad bacteria (anaerobes) that causes infections. A healthy vagina needs to have some bacteria and other organisms to maintain the normal acidity of the vagina to keep these bacteria in balance. Although douching may make you feel cleaner, it can actually upset this delicate balance of vaginal bacteria. That being said, there are some other vaginal infections that may also cause a foul-smelling odor and discharge. They are infections with yeast or Trichomonas vaginalis organisms and sexually transmitted diseases such as gonorrhea, chlamydia, and syphilis. I recommend visiting a doctor for a thorough evaluation to determine the exact cause of your condition and treatment.