| Name | Incest |
| Alias | Incest |
| Body Size | — |
Incest is a term rooted in specific cultural traditions, referring to sexual relations or marriage between close relatives that are prohibited by law or custom. It denotes sexual activity or marriage between close relatives (including those by blood or marriage) that violates cultural traditions, customs, or legal prohibitions. Examples include sexual activity or marriage between father and daughter, mother and son, brother and sister, father-in-law and daughter-in-law, or mother-in-law and son-in-law.Incest is both a biological and a cultural concept. It leads to higher rates of recessive genetic disorders and birth defects in offspring from consanguineous marriages and represents a violation and departure from societal ethical norms. Incest is prohibited or restricted by law in most countries worldwide. China's Civil Code prohibits marriage between direct lineal relatives and collateral relatives within three generations. Understanding and preventing incest and other forms of sexual abuse through comprehensive sexuality education is a crucial part of safeguarding the sexual rights of minors and establishing healthy family relationships.