Can a pap smear done while having period affect result and give false reading of abnormal cells?

Yes, having a Pap smear during your period can affect the results and potentially lead to false readings of abnormal cells. Here's why:

1. Blood in the Sample: During menstruation, the presence of blood in the vagina can interfere with the accurate collection and interpretation of cells during a Pap smear. Blood cells can obscure the view of the cervical cells, making it difficult to identify any abnormal changes.

2. Cervical Changes: Menstruation causes hormonal changes that can lead to temporary alterations in the appearance of the cervix. These changes can include increased inflammation, swelling, and shedding of cells, which may make it more challenging to distinguish between normal and abnormal cells.

3. Reduced Accuracy: The presence of blood and the natural changes in the cervix during menstruation can make it difficult for healthcare providers to obtain an adequate sample for analysis. This can result in a higher likelihood of false-positive results, where abnormal cells are mistakenly identified due to the altered cellular environment.

To ensure accurate results and minimize the chances of false readings, it's generally recommended to schedule a Pap smear after your menstrual period has ended. Healthcare providers typically advise waiting at least 2-3 days after menstruation before undergoing a Pap smear. This allows the cervix and vaginal cells to return to their normal state, reducing the risk of interference and improving the accuracy of the test.

If you have a Pap smear scheduled and your period unexpectedly starts, it's important to inform your healthcare provider. They can assess the situation and determine whether it's best to reschedule the test for a more suitable time.