Rwanda's health ministry has launched a campaign encouraging men to undergo vasectomies, in an effort to curb population growth in Africa's most densely populated country.

MT. KABUYE, Rwanda — Three thousand feet above the nearest village, and accessible only by foot, this prominent peak was once unspoiled African wilderness. For millennia, like most of Rwanda, Mt.

Rwanda is introducing the "no-scalpel" (NSV) procedure in a typically bold approach to curb an explosion in its population, which has risen fourfold over the past 50 years to top 10 million.

The last decade in Rwanda's history has been one of transition and rebirth. Seventeen years ago, the country was emerging from several years of strife and civil conflict but the over growing ...