口服避孕药是一种方便、安全、有效的避孕方法。研究发现，口服避孕药除了能节制生育，还可给女性带来许多意外的收获。 预防盆腔感染 据临床观察，服用口服避孕药的妇女，盆腔感染的发病率比未服用者低 50％。这是因为口服避孕药能使宫颈管的粘液增厚变稠，从而更有效地防止 Oral contraceptives are a convenient, safe and effective method of contraception. The study found that oral contraceptives in addition to birth control can also give women a lot of unexpected gains. Prevention of pelvic infection According to clinical observations, taking oral contraceptives in women, the incidence of pelvic infection was 50% lower than those who did not take. This is because oral contraceptives thicken the thickening of the mucous of the cervical canal and thus prevent it more effectively