noun, noun which may take the genitive case particle 'no'
birth control; family planning
A somewhat formal or technical term for limiting the number of children. In everyday conversation, 避妊 (ひにん, contraception) or 家族計画 (かぞくけいかく, family planning) may be more common.
産児制限は、家族の健康や経済的な理由から行われることがある。
Birth control is sometimes practiced for reasons of family health or finances.
I consulted a doctor about methods of birth control.