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子宫帽

ID: ANH14131chis
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。精液包含上千万个精子。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孕育的开始。子宫帽是一种避孕措施。这是一个临时的、可重复使用的设备,女性可以用来避孕。这种子宫帽由一种有弹性的橡胶制成,形状像水手帽。它上面有个圆顶,顶端有可拆除的绑带。圆顶周围的边缘有短边和长边。子宫帽应与一种叫做杀精剂的物质一起使用,以增加其效力。女性在发生性行为前将子宫帽放入阴道以避孕。子宫帽的圆顶覆盖着子宫颈,防止男性精液中的精子进入子宫。涂在瓶盖上的杀精剂会杀死与瓶盖接触的精子。在使用子宫帽前,应注意以下事项:如你在分娩8~10周内,或流产6周内,请不要使用子宫帽,在这段时间使用子宫帽更容易怀孕,因为宫颈更大;在月经期间不要使用子宫帽,因为它会阻碍子宫正常的血液流出;如果你有感染或其他健康状况影响子宫、宫颈或阴道,或者如果子宫帽被撕裂或损坏,请不要使用子宫帽。使用子宫帽时,请洗手并将其从容器中取出。将四分之一茶匙的杀精剂涂抹在圆顶内,并包括边缘。在圆顶和边缘之间的凹槽中再加半茶匙杀精剂。接下来,选择一个开始插入子宫帽的姿势。你可以屈膝躺下;双膝弯曲,蹲着,双脚踩在地板上;或者站着,一只脚放在椅子上。将食指和中指插入阴道,确定宫颈盖的位置。然后挤压宫颈盖,宫颈盖的圆面不要朝向阴道。然后将子宫帽滑入阴道,让它的长边先进入阴道。用一根或两根手指,将子宫帽尽可能地推入阴道。用手指检查,确保子宫帽接触并完全覆盖子宫颈。你可以把子宫帽留在阴道里长达48小时。在你最后一次性交之后等待6个小时,才能取下子宫帽。取下时,双脚踩在地板上蹲下。将一根手指插入阴道,找到覆盖子宫帽圆顶的绑带。用指尖轻轻推动圆顶,使其凹陷,并断开宫颈的吸力。然后用手指穿过绑带,慢慢地轻轻拉下来。取下子宫帽后,用肥皂和水清洗,让它自然干燥。对于从未怀孕或从未顺产的女性来说,子宫帽是最有效的避孕工具。如果女性每次发生性行为时正确使用子宫帽,其避孕有效率约为96%。一般情况下,子宫帽的避孕有效率约为92%,这意味着每次性交时,女性或者没有一直使用子宫帽,或者使用不正确。

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