Plain Language Summary: Heavy menstrual bleeding can significantly affect the health and quality of life of adolescents and young adults. It may be a sign of an underlying bleeding disorder, but these conditions are often missed or diagnosed late, leading to ongoing symptoms and increased health risks. This review discusses the importance of recognizing heavy menstrual bleeding, treating iron deficiency, investigating possible bleeding disorders, and improving collaboration among health care providers, families, and communities to ensure timely diagnosis and appropriate care.