Methods vary in their clinical effectiveness, and couples vary in the degree to which they make proper use of them. There has been a gradual shift toward more effective and more long-term methods, especially sterilization
Njira zamatenda zimasiyanasiyana, ndipo maanja amasiyana malinga ndi momwe amazigwiritsira ntchito moyenera. Pakhala kusintha pang'onopang'ono kunjira zogwira mtima komanso zanthawi yayitali, makamaka kutsekereza 