Women in the first time in the process of coitus due to the hymen rupture will lead to a small amount of blood, if the girl first coitus without bleeding symptoms do not need to take any treatment. Because the hymen is located in the female vaginal opening, under normal circumstances will not occur rupture of the labia majora and minora protection, but in daily life often carry out strenuous exercise, such as splitting legs, jumping girls easy to hymen damage, hymen rupture, and when the pubic area is traumatized is also easy to cause hymen rupture. There is a kind of women due to the hymen thick, elastic, have normal sex will not lead to hymen rupture will not bleed. In addition, if the process of coitus is relatively gentle, and women’s vaginal opening is too lubricated although cracks, but the hymen structure of the capillaries are not thick, there will be no bleeding symptoms.