What causes leucorrhea before menstruation?

What causes bloody vaginal discharge before menstruation?

Generally, it is manifested as mixed leucorrhea with different amounts of blood. Cervical polyps and cervical polyps are a type of chronic cervicitis, and the main symptoms are yellow leucorrhea, leucorrhea with peculiar smell, and leucorrhea with blood. Acute vaginitis, the main symptom is increased leucorrhea, which is yellow watery or purulent, with peculiar smell. When the infection is severe, spotting of vaginal bleeding may occur. Severe cervicitis, the main symptoms are increased leucorrhea, yellow, sticky, odor, accompanied by vulvar itching, bleeding during sexual intercourse, lumbosacral pain, dysmenorrhea, etc.

The clinical manifestation of vaginal discharge is light yellow, and in severe cases, there may be bloody purulent leucorrhea. Cervical cancer, vaginal bleeding after sexual intercourse, or bloody vaginal discharge. Endometrial cancer, the clinical manifestation is irregular bleeding, sometimes more, sometimes less. Premenopausal women may have prolonged menstruation, and postmenopausal women may have postmenopausal bleeding. Fallopian tube cancer, due to tumor stimulation of fallopian tube epithelial exudation and necrosis of lesion tissue, leucorrhea is intermittent, and red liquid flows out of the vagina intermittently. Vaginal cancer and uterine body cancer, the secretion of leucorrhea is mostly manifested as more leucorrhea, rice water-like, turbid and foul-smelling, sometimes mixed with blood and light pink, and large in quantity.

Bloody leucorrhea, increased menstrual volume, prolonged menstrual period, but normal cycle. It may be uterine fibroids, adenomyosis, functional uterine bleeding, and contraceptive rings may also increase menstrual volume. Irregular menstrual cycle with bloody leucorrhea. It is often functional uterine bleeding, but endometrial cancer should be ruled out first. Long-term continuous bloody leucorrhea. It is mostly malignant tumors of reproductive organs, such as cervical cancer, endometrial cancer, etc.