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阴道海绵

ID: ANH14126chis
医疗动画文字记录:女性的生殖系统包括阴道、子宫颈、子宫、输卵管和卵巢。在男女之间的阴道性交过程中,精液从男性的阴茎进入女性的阴道,这个过程被称为射精。精液中含有数千万个精子。精子从阴道通过子宫颈、子宫和输卵管,使女性体内的卵子受精。卵子受精标志着人类发育的开始。避孕海绵是女性预防怀孕的临时方法,也称为节育或避孕。海绵是由柔软的泡沫制成的。在它的一侧有一个浅凹与一个短的棉环连接。海绵有两种预防怀孕的方法。首先,用海绵覆盖女性的子宫颈,防止男性精液中的精子进入子宫。其次,这种海绵含有一种叫做杀精剂的物质,可以杀死精子。避孕海绵是一种非处方用品。使用海绵时,要洗手并将其从包装中拿出来。用清水将海绵完全浸湿。挤压湿海绵几次,激活海绵内的杀精剂。接下来,拿着海绵,浅凹面朝上,向上折叠。将海绵环垂下,将折叠好的海绵插入阴道。用一两根手指将海绵尽可能地推入阴道。当海绵松弛时,它将展开并覆盖子宫颈。用手指检查,确保宫颈完全被海绵覆盖,阴道环垂在阴道内。女性可以立即性交,也可以在插入海绵后24小时内性交。海绵放置时间不要超过30个小时。取出海绵时,将一根手指插入阴道,找到海绵的环。用一根手指在环上戳一下,然后慢慢地、轻轻地往下拉。取出海绵后,扔进垃圾桶。如果女性每次性交都正确使用避孕海绵,其避孕效果约为90%。这意味着每年大约有10 / 100的女性会怀孕。一般情况下,海绵的有效率约为85%,这意味着如果每次性交时不总是使用海绵或不总是正确使用海绵,100名女性中约有15人会怀孕。使用海绵并不能保护性伴侣免受包括艾滋病毒在内的性传播疾病的感染。

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