Abortion is illegal in Malawi except when the pregnancy endangers the mother's life, yet complications of abortion account for the majority of admissions to gynecological wards. This study collected data on all post-abortion care (PAC) cases reporting to all PAC-providing health facilities in Malawi over a 30-day period. Of a total of 2,028 PAC clients, 20.9% were adolescents (age 10-19) and 29.6% were young adults (age 20-24). More than half of adolescents and almost 80% of young adults were married. Less than 5% of adolescents and 22.5% of young adults reported using contraception when they became pregnant. Being unmarried was associated with previous abortion and contraceptive use among young adults. These statistics indicate a high proportion of unwanted pregnancy and lack of access to modern contraception among young women. Programs to increase access to pregnancy prevention services and protect young women from unsafe abortions are greatly needed.