为什么体外射精不安全 何瑛 成都曙光医院

为什么体外射精不安全 何瑛 成都曙光医院
体外射精避孕的方法说起来非常简单，但是并不可靠，失败率非常高，因为失败原因男方在将阴茎抽出阴道前，已有少量精液进入女性体内，因为在即将射精和射精是一个连贯的动作，两者之间相隔的时间非常短，多数男子不能准确把握好时机，以至在即将达到性高潮时不能及时将阴茎从女性体内抽出，使最初射出的精液排入女性阴道内，从而这部分精液中的精子数量最多，容易导致女性怀孕。

Why ejaculation in vitro is not safe
The method of ejaculation in vitro is very simple, But it's not reliable, The failure rate is very high, Because of the failure, the man pulled his penis out of the vagina, A small amount of semen has entered the female body, Because ejaculation and ejaculation are a coherent movement, The time between the two is very short, Most men can't grasp the right time, So that when the orgasm is about to be reached, the penis cannot be pulled out of the female body in time, The first ejaculated semen is discharged into the female vagina, So the number of sperm in this part of semen is the largest, It is easy to lead to pregnancy.