Leukorrhea is a mixture of vaginal mucosal exudate, cervical canal and endometrial glandular secretions, and its formation is related to the action of estrogen. Normal leucorrhea is white burnt or egg white like, highly viscous, without fishy smell and small amount, which is called physiological leucorrhea. However, if there is inflammation in the reproductive tract, especially vaginitis and cervicitis, or if cancer occurs, the amount of leucorrhea will increase significantly and the nature will change, which is called pathological leucorrhea. The common pathological leucorrhea are: 1. colorless and transparent mucousy leucorrhea: egg white like, similar in nature to the mucus secreted by the cervical glands during ovulation, but significantly increased in volume, generally considering the possibility of chronic endocervicitis, ovarian dysfunction, vaginal adenopathy or highly differentiated adenocarcinoma of the cervix
2. White or grayish-yellow foamy leucorrhea: characteristic of trichomonas vaginalis and may be accompanied by vulvar itching.
3, curdled leucorrhea: characteristic of Candida vaginitis, often accompanied by vulvar itching or burning pain.
4.Purulent leucorrhea: yellow or yellow-green, sticky, with a foul odor. Acute vaginitis, cervicitis and cervicitis caused by bacteria such as trichomonas or gonorrhea can cause it. Pus accumulation in the uterine cavity, cervical cancer, vaginal cancer, or foreign body residue in the vagina can also lead to purulent leucorrhea.
5.Bloody leucorrhea: If blood is mixed in the leucorrhea, cervical cancer, endometrial cancer, cervical polyp or submucosal myoma should be considered. The placement of intrauterine device can also cause bloody leucorrhea.
6.Watery leucorrhea: continuous flow of rice water-like leucorrhea with strange odor is usually advanced cervical cancer, endometrial cancer or submucosal myoma combined with infection. Paroxysmal discharge of yellow or red watery leucorrhea should be noted as possible tubal cancer.