STD and induced abortion.
In Gambella, southwestern Ethiopia, sexual intercourse following the birth of a baby is not allowed until the child is 2-3 years old.  Whilst most mothers wait for the specified time, their husbands find it difficult and seek sex elsewhere.  This cultural law therefore increases the risk of STD transmission.  The "rule" is obviously hard for some young couples to keep.  They have sexual intercourse without contraception, resulting in pregnancy.  The wife, not wishing to be seen to have broken the law, seeks an abortion.  Cultural modification requires a long period of time but health education about STDs and contraception is, meanwhile, indispensable.
D000028:Abortion, Induced; D000349:Africa; D017954:Africa South of the Sahara; D000351:Africa, Eastern; D001519:Behavior; D001695:Biology; D003267:Contraception; D003469:Culture; D003710:Demography; D003906:Developing Countries; D004194:Disease; D004467:Economics; D004493:Education; D005002:Ethiopia; D005114:Extramarital Relations; D005193:Family Planning Services; D005298:Fertility; D006266:Health Education; D006301:Health Services Needs and Demand; D007239:Infections; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011275:Pregnancy, Unwanted; D012307:Risk Factors; D012309:Risk-Taking; D012746:Sexual Abstinence; D012725:Sexual Behavior; D012749:Sexually Transmitted Diseases
Abortion, Induced; Africa; Africa South Of The Sahara; Behavior; Biology; Contraception; Cultural Background; Demographic Factors; Developing Countries; Diseases; Eastern Africa; Economic Factors; Education; Ethiopia; Extramarital Sex Behavior--men; Family Planning; Family Planning, Behavioral Methods; Fertility; Fertility Control, Postconception; Health Education; Infections; Needs; Population; Population Characteristics; Population Dynamics; Postpartum Abstinence; Pregnancy, Unwanted; Reproductive Behavior; Reproductive Tract Infections; Risk Behavior; Risk Factors; Sex Behavior; Sexual Abstinence; Sexually Transmitted Diseases