An ultrasound a few days before your period is also accurate, it’s just that the time of day varies and so does the observation.
Doing a vaginal ultrasound is accurate at any time, only the thickness of the uterine lining varies from menstrual cycle to menstrual cycle. Ultrasound can be done before menstruation to check the thickness of the endometrium, to determine whether menstruation can be normal or not, and also to assist in the diagnosis of uterine, ovarian and other pathologies.
If diagnosing diseases of the uterus and ovaries, such as fibroids and ovarian cysts, ultrasound can be done at any time without affecting the accuracy of the results.
For routine gynecological examinations in general, try to choose 3 to 5 days after the end of menstruation. If a disease condition is considered, it is recommended to go to the hospital in time, and the doctor will choose the time for the examination according to the specific situation.