The investigators consider that there are some rising concerns about the use of isotretinoin by women of reproductive age with depleted ovarian reserve, hence it is important to detect the effect of isotretinoin on ovarian reserve.

There has not been a well-designed study evaluating its effects on the human ovarian reserve, hormone levels and menstrual cycles in women with polycystic ovary syndrome (PCOS). For this reasons, this study was administered to determine whether there is an effect of isotretinoin on the gonads and hirsutism in women with acne and PCOS.

Inclusion Criteria:

• consisted of 40 volunteers women with PCOS (aged 18- 40 years, BMI, 18-44kg/m2) who attended our obstetrics and gynecology clinic for the treatment menstrual irregularities and hirsutism

Exclusion Criteria:

• 1)presence of any dermatologic disorder besides acne 2) presence of any systemic disease 3) exposure to any systemic treatment in the last three months that could alter ovarian reserve 4) pregnancy or lactation 5) infection diseases 6) use of antidepressants, steroidal hormone drugs, mood stabilizers, caffeine, alcohol, or tobacco 7) histories of abdominal surgery for endometriosis or ovarian surgery