Contraceptive pills are hormonal drugs, which will make the leucorrhea sticky and low in volume after taking them, thus playing a certain role in hindering sperm movement. However, if the leucorrhea is like water after taking the pill, it is considered to be a pathological phenomenon caused by diseases, commonly vaginitis, cervicitis, submucosal fibroids, hydrosalpinx, cervical cancer and other diseases, the causes of which need to be clarified and given reasonable treatment and handling. Common causes and treatments 1. Vaginitis: When the micro-ecological environment in the vagina is damaged or invaded by exogenous pathogens, it can lead to vaginitis. The main symptoms include itching, burning and irritation of the vulva and vagina, and abnormal flow of leucorrhea like water, which needs to be treated according to different types of vaginitis. 2. Cervicitis: Caused by damage to the cervix and pathogenic invasion, including inflammation of the vaginal part of the cervix and inflammation of the mucous membrane of the cervical canal, which in turn results in leucorrhea like water. For acute cervical inflammation, antibiotics can be used for treatment under medical supervision. For those with chronic cervicitis, further examination for cervical cancer and screening for TCT and HPV is required. If the test results are not problematic, no special treatment or therapy is needed. If patients with chronic cervicitis have increased discharge, which affects normal life, local application of Chinese herbal medicine or physical therapy can be considered. 3. submucosal fibroids: submucosal fibroids are uterine fibroids that protrude into the uterine cavity, which can cause abnormal contraction of the uterus, dysmenorrhea, accompanied by heavy menstrual flow and cycle disorders, and can have leucorrhea like water, which can be treated by physical therapy or surgery. 4. Hydrocele: After suffering from tubal inflammation, secretion of mucous membrane cells accumulates in the lumen due to adhesions and atresia, or adhesions at the isthmus and umbrella end occur due to tubal inflammation, and tubal pus is formed after blockage, which eventually becomes watery liquid when the pus cells in the lumen are absorbed, which can be manifested as increased secretion and watery. Patients with hydrosalpinx can be observed and followed without treatment if they have no obvious symptoms and no fertility requirements. If they have fertility requirements, they can be treated surgically. 5. Cervical cancer: If the leucorrhea looks like water and also appears red or yellowish brown, it may be related to cervical cancer. Usually, the lesions are removed surgically first, and then treated with radiotherapy and chemotherapy. The pill should be taken with strict attention to the way it is administered, preferably under the guidance of a doctor. Since the main ingredient of birth control pills is estrogen or progestin, if you have gynecological related diseases, you may have a change in leucorrhea or other symptoms after taking birth control pills. Therefore, before taking the pill, you can take an active medical examination and treat related diseases, and after taking the pill, you should also pay close attention to your body and seek medical treatment if you have any obvious abnormalities or discomfort.