| The present study was concerned to investigate the disturbances that occurred in some hormonal and Criterions in blood serum of women who discontinue of oral contraceptives for different periods ranged from(6–30) month.The study was carried out in AL-Zahra hospital Laboratories for birth and children, in Najaf city ,within period from 1/8/2008 to 1/2/2009This study composed of (101) women ,were devided into two groups : The first group consisted of (83) women who were suffering from prolongation of the perios to be pregnant after the left using the oral contraceptives pills, although these women were previously fertile ,because each of them had born at least one baby before .The second group consist of (18) fertile women . who were never used any kind of contraceptives . All women ages ranged from 24–38 yearResults of all required tests were obtained from the first group compared with that results obtained from control groupStatistical analysis of results revealed that , there was significant decrease (P<0.05) in concentration of both follicle stimulating hormone (FSH),and Luteinizing hormone (LH) ,during follicular phase ,and this decreasing was significantly shown among all age groups ,which is higher decrease from third group (34–38),and from fourth stopping duration(25–30) month ; and the concentration of FSH & LH was reversely decreased where as the ages of women were increased. Otherwise .The study exhibited also a highly significant increase in concentration of both progesterone and estradiol hormones ,and this increasing was significantly shown among all age groups which is higher increase from third group (34–38) of women who were left using oral contraceptive pills ,indifferent periods which is higher increase from first stopping duration(6–12) month .Mean while ,there were no significant differences occurred in prolactin hormone level, in the same groups women and among all age groups also. |