The description is called puberty menorrhagia. Is it is assoicated with pain. Most abnormal bleeding in adolescents is caused by immaturity of the hypothalamic - pituitary ovarian axis resulting in anovulation. Approximately 20% of adolescents have an underlying endocrine or haematological disorder requiring targeted diagnostic testing. Individualizing every case, excluding pregnancy, timely hospitalization, a thorough history, physical examination and base line workup are crucial in the management of every case. Reassurance, counselling of the girls about reproductive physiology is done, Regular follow-up, balanced diet and long term iron therapy go a long way in treatment of puberty menorrhagia. You can approach your Family Practitioner for counselling and Iron tablets and diet.