上环了会怀孕吗
Aug 13, 2024
Source: Cainiu Health
Dr. Zhang Lu
Introduction
There are two types of intrauterine devices (IUDs): copper IUDs and hormonal IUDs. Both significantly reduce the risk of pregnancy, but do not completely eliminate the possibility. When an IUD is correctly inserted by a trained healthcare provider and remains in place without displacement, its contraceptive effectiveness is very high, with a failure rate close to 0%. Pregnancy after IUD insertion is extremely unlikely.
一般情况下，上环是指放置宫内节育器。放置宫内节育器后是否会怀孕，主要取决于宫内节育器使用情况。若有不适，Recommendation及时就医。具体分析如下：
1、会
如果宫内节育器在子宫内移位，可能会降低避孕Effect，增加怀孕的风险。宫内节育器的位置偏移、环的大小与宫腔不匹配、环的脱落等，都可能使避孕失败，导致怀孕。
2、不会
若宫内节育器的型号和位置都正确，且没有发生脱落或移位时，其避孕Effect通常是非常可靠的。放置宫内节育器后怀孕的可能性很低。
如果计划长期避孕，应遵循Doctor的指导，了解所选宫内节育器的有效期限，及时更换以维持最佳避孕Effect。
