Redness generally refers to a small amount of vaginal bleeding when a woman has sex for the first time. Falling red refers to the first time a woman has sex with vaginal bleeding, is due to the hymen rupture caused by the amount of bleeding is small, but also accompanied by obvious pain, but generally does not affect the normal sex life, is the majority of women experience the process. But a small number of women due to accidental rupture of the hymen and other factors, the first time sex did not occur this phenomenon, is also normal. It is recommended that women have sex for the first time, make adequate psychological preparation, keep clean, to prevent the occurrence of gynecological inflammation, if there are symptoms of physical discomfort, we should go to the hospital in a timely manner, under the guidance of the doctor for standardized treatment, to promote the relief of discomfort.