Before the start of sex, it is recommended that the couple carry out genital cleansing, generally with warm water can be, because warm water has a cleaning, sterilizing effect, especially the male genitalia easy to hide dirt, resulting in female infection, which causes gynecological inflammation. The time of sex must be noted, the menstrual period prohibited intercourse, generally in the menstruation completely clean three days after intercourse. It is also not possible to have intercourse when the menstrual period is approaching, because the pelvic cavity is in a state of congestion at this time, intercourse is likely to cause infection and bleeding. After intercourse, it is also recommended that you clean your genitals.