my daughter is 10 years old and she got her first...

Treatment

you should do the tests and then visit your gynacologist who might prescribe to you Nonsteroidal anti-inflammatory drugs (NSAIDs): First-line medical therapy for heavy and prolonged bleeding , Oral contraceptive pills (OCPs): A popular first-line therapy for women who desire contraception; dienogest?estradiol valerate has been approved by the US Food and Drug Administration (FDA) for heavy menstrual bleeding , and Progestin which is the most frequently prescribed medicine for heavy and prolonged bleeding

How diagnosis is being made

 by taking full medical history and clinical examination then doing the tests which is : Complete blood count , Iron studies (total iron-binding capacity [TIBC] and total iron) , Coagulation factor studies  , Human chorionic gonadotropin (hCG) level , Thyroid function tests and prolactin level , Liver function tests (LFTs), kidney function tests (blood urea nitrogen [BUN] and creatinine), or both , Hormone assays , and pelvic ultrasonography

Causes

• Uterine cancer
• Endometrial polyps
• Cervical infection
• Uterine fibroid
• Endometriosis
• Bleeding disorders

Advice

you should visit hte gynecologist to get proper managment