Can you have a smear test on your period?
Cervical screening, commonly called a smear test, is a crucial health check for detecting abnormal changes in cervical cells that can prevent cervical cancer. However, timing your appointment correctly can make all the difference to the accuracy and comfort of the test. If you’re wondering, “Can you have a smear test on your period?” the answer is usually no, but there are exceptions. Here's what you need to know.
Why timing matters
While it’s technically possible to have a smear test during your period, it’s not ideal. Blood from your period can make it harder to collect a clear sample of cervical cells, which may result in inconclusive or less accurate results. This could mean you’ll need to repeat the test at a later date.
To ensure the most accurate results, it’s best to schedule your cervical screening for a time when you’re not menstruating.
When is the best time for a smear test?
For most people, the ideal time for a smear test is during the middle of your menstrual cycle—roughly 7 to 14 days after the first day of your period. At this stage, your cervical cells are easiest to collect, and there’s no interference from menstrual blood.
If you have irregular periods or are unsure about timing, speak with your GP or nurse when booking your appointment. They can help you find a suitable date.
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What if you’re spotting?
If you’re experiencing light spotting rather than a full period, you can usually proceed with your smear test. However, it’s still a good idea to inform your nurse beforehand so they can assess whether the test will be affected.
What to do if you’re on your period at the time
of your appointment
If your period unexpectedly arrives on the day of your smear test, don’t worry. Contact your GP surgery to discuss whether you should proceed or reschedule. For light flow or the very end of your period, your nurse may still be able to carry out the test. However, if your flow is heavier, they’ll likely recommend rebooking to ensure an accurate sample.
Tips for preparing your smear test
- Know Your Cycle: Track your period to help schedule your test during a time when you’re not menstruating.
- Plan Ahead: Book your appointment well in advance to secure a date that aligns with your cycle.
- Stay Flexible: If your period starts unexpectedly, don’t hesitate to reschedule—your GP surgery will understand.
Addressing common concerns
It’s natural to feel nervous about scheduling or rescheduling a smear test. If you’re wondering about other concerns, such as “Can you have sex after a smear test?” or “Can you have a smear test while pregnant?”, your GP or nurse will be happy to answer these questions. Remember, they’re there to help and ensure your screening experience is as comfortable and effective as possible.
Why cervical screening is worth prioritising
While the timing of your smear test is important, what truly matters is attending your cervical screening regularly. Even if you need to reschedule due to your period, make it a priority to rebook your appointment. Cervical screening is one of the most effective ways to reduce the risk of cervical cancer and safeguard your health.
Find out more about cervical screening (smear tests) with our AXA Health Smear Fear Campaign.
Reviewed by Dr Pallavi Bradshaw
Dr Pallavi Bradshaw is Deputy Chief Medical Officer at AXA Health, with over 20 years of experience in global healthcare. Pallavi graduated from St Catharine’s College, Cambridge and trained at Addenbrooke’s Hospital as an Ophthalmologist before joining the Medical Protection Society (MPS). In her role she provides support and leadership across AXA Health, guiding the development of AXA Health’s external policy, with a particular interest in patient safety.