How many days are there before the menstrual period, there are a few blood streaks in the vagina, what is the reason?

Patient's question:

No

Doctor's answer:

This may be caused by chronic cervicitis, resulting in a small amount of dark blood streaks. The clinical manifestations of chronic cervicitis include increased leukorrhea, which is creamy white, mucous-like, or mixed with blood streaks in the leukorrhea, or bleeding during intercourse, accompanied by vulvar itching, lower back and sacral pain, which worsens during menstruation. It is recommended to undergo a gynecological examination to rule out the cause.