The vagina, similar to our mouth, is normally inhabited by a multitude of microscopic organisms.
The vagina's acidic environment prevents one species overpowering another, and inhibits infection. A healthy vagina actually smells quite sweet and pleasant.
Yet the change that occurs with any vaginal infection changes the smell immediately, and thus one can partially judge a vagina's state of health by its smell.
It should be noted that both the smell of a vagina and its being infected are directly related to a woman's lifestyle, her weight, and diet.
Some basic rules on Feminine Hygiene can both prevent infections and insure a sweet smelling vagina as well.
Hygiene
Because infectious agents such as bacteria and yeasts are found in the intestine, after defecation a woman must wipe herself from front to back vaginal area first, rectum after.
A bidet or immediate wash of the anus is also advised, with a rinse of the vulva with warm water.
Washing also the genital area often with a special ph balanced soap is also essential, and especially after each urination
Vaginal irrigation is not necessary as it usually disturbs the acid environment, and can allow yeast, for example, to flourish.
Women should discourage vaginal and anal intercourse alternation during he same session.
Once a man's penis or any object has entered the anus, it must not be allowed back in the vagina without disinfection.
Life-Style
Tight jeans and clothing look great, but they prevent the normal breathing function of the skin and especially an area like the vulva. This closed in effect will produce an unpleasant smell
For the same reason, woman is recommended not to wear panties during sleep.
Use of synthetic materials in clothing will also react with the bacteria on the skin, and the bacteria's waste product leaves a particularly unpleasant smell, so wear only 100% pure cotton or silk panties a majority of the time.
If you use tampons, change them very often. Left too long in a vagina, the tampon itself will be a major cause of order and even infection.
Diet
It has been shown that diet can affect directly the smell of the vagina. Eating less meat and meat products, and more fruit and vegetables have a very good effect on vaginal odor. Also, you must drink at least 2 liters of water daily.
Sexual Conduct
The use of prophylactics (condoms) is highly recommended for all couples except those that are very familiar. Also if you allow a man to insert either his fingers or toys into your vagina, try to insure both are clean.
Vaginal Infections
This subject is covered in other articles dedicated to this subject, but any of the below can (and does) cause unpleasant vagina odor. In each and every incidence, you must see your gynecologist.
Bacterial Vaginosis.
This gives the characteristic fishy smell.
Yeast Infections.
Most women do not see their doctor with yeast infection, and resort to over-the-counter medicines. Symptoms include vulvar itching, redness and irritation. Painful intercourse. We recommend seeing a gynecologist.
Trichomoniasis.
This is a sexually transmitted illness with symptoms including vaginal itching, burning, and discharge. See your gynologist.
A bit of care goes a long way. Your vagina was meant to smell sweetly and as it normally cleans itself (both monthly and daily) your caution will be rewarded.