Yellowish leucorrhea is commonly caused by the following: 1. Inflammation of the vaginal mucosa, resulting in yellowish vaginal discharge, and some people may experience itching of the vulva, and others may experience odorous vaginal discharge. 2. Chronic inflammation of the cervix, such as cervical polyps, cervical hypertrophy, and cervical nuchal cysts, may lead to yellowish leucorrhea. 3. Cancer of the endometrium can lead to a large amount of yellow discharge with a foul odor. 5. Due to submucosal fibroids, increased glandular secretion can also lead to increased discharge and make the leucorrhea yellow. In addition, there is also pelvic inflammatory disease leading to increased exudation, making the secretion yellow; pelvic tumors can also appear in this situation. Therefore, the appearance of yellowish leucorrhea should not be treated simply, but must go to the hospital for a detailed examination and give timely treatment according to the results.