Child sexual abuse (CSA) is a severe global problem that has long-term psychological, physical, and societal effects for victims. This review looks at the prevalence, risk factors, and effects of CSA, with a specific emphasis on Vietnam. The frequency of CSA varies worldwide, with notable regional variations. In Vietnam, approximately 2,000 children are sexually abused each year, with females being disproportionately affected. Risk variables include age, gender, family dynamics, social level, and cultural norms. The review investigates the short- and long-term effects of CSA, which include mental health illnesses, physical health issues, and social difficulties. Prevention and intervention efforts, including as school-based education programs and parental involvement, show promise, but they encounter obstacles owing to cultural stigma and limited resources. The Vietnamese government has developed a variety of policies and legal frameworks to combat CSA, however gaps persist. This research emphasizes the importance of a multidimensional approach that involves broad education, substantial support services, and ongoing legislative improvements to effectively prevent and respond to CSA. Future study should focus on improving preventative strategies and assuring their long-term efficacy.