Vaginal discharge is normal for a woman, and all women are different. Causes of change in discharge include infection, malignancy, and hormonal changes. It sometimes occurs before a girl has her first period, and is considered a sign of puberty.

Leukorrhea may occur normally during pregnancy. This is caused by increased bloodflow to the vagina due to increased estrogen. Female infants may have leukorrhea for a short time after birth due to their in-uterine exposure to estrogen.

After delivery, leukorrhea accompanied by backache and foul-smelling lochia (post-partum vaginal discharge, containing blood, mucus, and placental tissue) may suggest the failure of involution (the uterus returning to pre-pregnant size) due to infection. Investigations: wet smear, gram stain, culture, pap smear and biopsy.
 There are a variety of reasons due to which leucorrhea can occur in women. The following are some of the well-known causes:-

(i) Fungal infection – A fungus, much like the yeast, can cause infection of the vaginal tract, leading to leucorrhea. When the woman is infected by a fungus, then the discharge is in thick and white accompanied by an itching sensation. This kind of discharge is called as a vaginal thrush.

(ii) Sexually transmitted diseases – Some sexually transmitted diseases can cause leucorrhea in women. The most popular of such sexually transmitted diseases is trichomoniasis. Such discharges are greenish or yellow.

(iii) Unhygienic toilet habits – Sharing toilet articles, especially in public toilets, can cause an infection of the vagina, resulting into leucorrhea. This is also observed by personal forgetfulness such as forgetting to remove a tampon or diaphragm. Women who rely a lot on vaginal medications are often victims of leucorrhea.

(iv) Cervical problems – Two kinds of problems with the cervix, the cervical erosion and the cervical polyp, can cause leucorrhea. Such leucorrhea is generally more profuse following sexual intercourse. The discharge is brown and resembles congealed blood.

The reason of each kind of leucorrhea abnormity
1.Transparent sticky leucorrhea:

The appearance of this kind of leucorrhea is similar to the normal leucorrhea’s , but this kind of leucorrhea’s quantity obviously increases. The female presents this kind of leucorrhea is frequently because they have applied the estrogen class medicine or the vagina contraceptive. The female who presents this kind of leucorrhea, possibly contracts chronic cervicitis, ovarian function being out of balance, adenosis vaginae or cervix well-differentiated adenocarcinoma and so on diseases.

2.Grey uniform traing flavour leucorrhea:

It often present this kind of leucorrhea when the female contracts the bacterial disease of vagina. The patients with this sickness may be accompanied with the lower pruritus vulvae.

3.Watery leucorrhea:

This kind of leucorrhea like the water which have washed the rice, evil smelling, keep on flowing from the patient’s vagina.When presents this kind of leucorrhea, the female generally may be the patients with late cervical cancer, vagina cancer or myoma under the mucous membrane which is accompanied by the infection. If its vagina discontinually discharges limpid, yellowish red or the red watery sample leucorrhea, the female possibly contracts the carcinoma of fallopian tube.

Once the female discovered that your own leucorrhea have the abnor change, should go to see a doctor promptly, and should treat it under doctor’s instruction.