To the best of the investigators' knowledge this is the first trial to investigate the role of Celecoxib and oral Tramadol in reducing outpatient hysteroscopy associated pain in post menopausal women, with no previous data to calculate the sample size with in this cohort of women. Data from studies on premenopausal women cannot be applied to post menopausal women because hysteroscopies in post menopausal women are usually more difficult, require more cervical manipulations and cause more pain. Assuming that the response will be normally distributed, the sample size is calculated to detect a mean difference of 1 unit between Tramadol and Celecoxib pain scores during the procedure (lower difference are not considered clinically relevant) using VAS and assuming that the within group standard deviation will be 2. The investigators will need to study 64 cases in each group to be able to reject the null hypothesis that the population means of the Tramadol and Celecoxib are equal with probability (power) 0.8. The investigators added 11 cases to each arm accounting for any missing data and procedure failure ending in 75 cases in each group. The Type I error probability associated with this test of this null hypothesis is 0.05 using Student's t test for independent samples. Sample size calculation is done using Stats Direct statistical software version 2.7.2 for MS Windows, Stats Direct Ltd., Cheshire, UK.