There are lots of myths out there surrounding your reproductive system. Let's debunk a few here.

Myth no 1: If you don't already know, douching after sex does not effectively prevent pregnancy.

It is a common misconception that douching can remove or flush away sperm that is in the vagina. However, sperm that is deposited in the vagina can be found within the uterus (womb) and fallopian tubes as early as 1 minute after ejaculation. So unless you are prepared to jump out of bed within 20 seconds after sex to rush to the toilet, it is not an effective contraception method.

Now for myth no 2.

Some of us may have grown up with the idea that douching is necessary for female hygiene; be it to clear away menstrual blood or to remove bacteria or even of rid of undesired smells. This is not true.

The vagina is able to cleanse itself through its normal discharge. This allows small debris, dead cells and bacteria to be removed naturally. Together with the cervix, the vagina produces a secretion in small quantities daily that keep the tissues moist and protects the surface from abrasions. This secretion is also acidic in pH, which helps to prevent bacteria growth.

Douching with soap or water is certainly not recommended, as it removes the vagina's normal secretion and changes its pH.

This upsets the balance in the bacteria and can lead to infection. Using soap or water may also cause irritation, abrasions and damage the delicate skin of the vagina. And in case of a real infection, you may confuse your doctor by altering some of the tell tale signs, causing delay in diagnosis and treatment.

If you really must douche, then do it only once to twice a week only. Use a pH friendly vaginal wash such as Lactacyd. Feminine washes maintain the natural acidic pH of the vaginal and are less likely to cause drying and irritation of the tissues.

Got a question on your reproductive health? Email it to us at Just Woman and we will get by Dr Fong Yoke Fai, a consultant Obstetrician and Gynaecologist at the National University Hospital.