Increased leucorrhea can occur in early pregnancy. If the leucorrhea is yellow, it can be caused by factors such as hormonal changes in the body and reproductive tract diseases, but it needs to be treated after specific analysis. Common causes and treatment methods a. Hormonal changes in the body: when pregnant, the estrogen and progesterone in the body will increase, resulting in increased vaginal secretions, usually milky white or yellowish, no odor, and no symptoms such as vaginal itching, usually no special treatment. However, pregnant women should clean up the discharge in time, keep the vulva dry, wear cotton underwear and wash it regularly to avoid bacterial infection. Reproductive tract diseases: 1. Vaginitis: Vaginitis is usually accompanied by odor and vulvar itching, and is mainly classified as trichomoniasis, bacterial vaginitis and mycotic vaginitis, which require timely consultation and treatment under the guidance of a professional doctor. Trichomoniasis is mainly manifested as grayish or yellowish-white frothy leucorrhea; bacterial vaginitis is usually yellow or yellowish-green sticky leucorrhea. Mycotic vaginitis usually causes white or yellow sticky leucorrhea, or in rare cases, thin leucorrhea, typically in the form of bean curd-like or milk clots. In addition to mycosis vaginalis vaginitis can be treated with metronidazole. Mycotic vaginitis can use soda solution to rinse the vulva and vagina or sitz bath, but also the use of mycobacterium, ketoconazole, clotrimazole, miconazole suppositories and other local topical, because of the greater restrictions on the use of drugs during pregnancy, but also under the professional guidance of doctors for drug treatment; 2, other gynecological diseases: pregnancy may be combined with other gynecological diseases, such as cervicitis, pelvic inflammatory disease, endometritis, etc., may lead to leucorrhea more yellow It is recommended to improve the relevant examination to clarify the cause and use antibiotics and other medication under the guidance of the doctor to treat the cause. If there is an increase in leucorrhea, you need to keep your vulva dry and change your underwear regularly. If it is accompanied by symptoms such as itching or odor, you need to go to the hospital in a timely manner, under the guidance of the doctor for treatment, avoid unauthorized and blind use of drugs, and prohibit sexual intercourse to prevent the risk of miscarriage, or affect the development of the fetus.