Sex is an important behavior for reproducing the next generation, and normal sex is also an indispensable part of human beings. Sex brings pleasure and is good for physical and mental health. Women will secrete fluid from the vagina, cervix and vestibular glands during intercourse, which can have a lubricating effect and will appear as white fluid. Normal discharge is milky white or transparent. If there is bloody discharge, you should go to the hospital for examination to see if you have vaginitis or cervicitis, and if necessary, you can do vaginal secretion examination and cervical cancer screening. Cervical cancer screening can be done once every three years if the screening result is not problematic for two consecutive years. HPV test in cervical cancer screening mainly checks whether there is human papillomavirus infection. HPV is categorized into high-risk and low-risk infections, and the high-risk type is closely related to the development of cervical cancer. If the high-risk type is positive, close observation should be made, and antiviral treatment or immune-enhancing treatment should be given.