Menorrhagia is the medical term for menstrual periods with abnormally heavy or prolonged bleeding....possible causes are polyps, fibroids,ovarian dysfunction,. Some blood coagulation disorders such as von Willebrand's disease etc,uterine cancer, ovarian cancer and cervical cancer etc...Consult nearest gynecologists for clinical examination and evaluation they will do the needful.

Hello there.  I can understand your concern.  There could be a lot of causes for your irregular and improper periods. Kindly consult a gynaecologist in person for further evaluation and management.  A ultrasound will also need to be done. Best regards. Dr. Anil kumar jain. Bangalore.