避孕的方式有许多种,最常见的就是避孕套、口服避孕药、上环等。未婚未育女性发生性行为一般都会采用避孕套和口服避孕药,而已生育女性则多选择上环。但若是选择上环,对于未婚未育女性来说,也并不是最好的方式。专科医生也不会建议未育或者新婚女性放置节育环来采取避孕的方法。这是为什么呢?首先,未生育的女性阴道口较紧,要忍受放置节 There are many ways of contraception, the most common is the condom, oral contraceptives, Sheung Wan and so on. Unmarried women who have sex with infertility generally use condoms and oral contraceptives, and women who have been giving birth are more choice Sheung Wan. But if the choice of Sheung Wan, for unmarried women who are not fertile, it is not the best way. Specialists also do not recommend ways to place contraception on unfocused or newlywed women. This is why? First of all, unfertile female vaginal tightness, to put aside the festival