Background: Abnormal uterine bleeding is defined as irregularities in the menstrual cycle involving frequency, regularity, duration, and volume of flow outside of pregnancy. Up to 1/3^rd of women experience abnormal uterine bleeding in their life, with irregularities most commonly occurs at menarche and perimenopause due to disruption of the hypothalamic-pituitary-ovarian axis.

Aim: To compare the effectiveness of Norethisterone and Dydrogesterone for the treatment of irregular menstrual cycles due to abnormal uterine bleeding of ovulatory or endometrial dysfunction and to check for patient satisfaction after the use of prescribed hormones by taking their feedback.

Methods: This observational, comparative, cohort-prospective study was conducted on 100 nonpregnant women between the ages of 15-45 years who presented with complaints of irregular menstruation in gynae outdoor of AMTH for 6 months from April 2021 to September 2021. After excluding pelvic pathology, known thyroid disease, coagulation disorder, or use of the contraceptive method, the participants were divided into Group A and Group B, each having 50 participants.

Results: The mean age±SD of the participants in Group A was 29±3.4 while Group B had mean age±SD was 29.5±3.6. In Group A, 38(76%) patients reported a regular menstrual cycle after 3 months of use while 12(24%) patients complained of persistent irregular menstrual cycle despite 3 months use of Norethisterone with compliance in Group B using Dydrogesterone, 22(44%) patients had regular menstrual cycles while 28(56%) patients had persistent irregular menstrual cycles after three months of use.

Conclusion: So we concluded from our study that Norethisterone had a better cycle control than Dydrogesterone.

Keywords: Abnormal uterine bleeding of ovulatory and/or endometrial dysfunction, Norethisterone, Dydrogesterone,