Bleeding After a Vaginal Ultrasound
A transvaginal ultrasound is a routine part of many early pregnancy appointments. Some women notice light spotting afterwards, which can cause anxiety, especially if you are already attending the unit because of bleeding. Understanding why it happens helps put minds at ease.
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What Causes the Bleeding?
The ultrasound probe is gently inserted into the vagina to get a clearer image of the uterus in early pregnancy. The probe itself does not enter the cervix or uterus, but the gel and slight pressure can irritate the cervix, which is already sensitive and engorged with blood during pregnancy. This can cause a small amount of pink or brown spotting, usually noticed when wiping afterwards. It is not a sign that the scan has harmed the pregnancy.
What Is Normal and What Is Not?
Light spotting for up to 24 hours after a vaginal scan is considered normal. You should contact the early pregnancy unit if the bleeding becomes heavier than a period, turns bright red, contains clots, or is accompanied by abdominal pain or fever. If you were already bleeding before the scan and it has increased, let the unit know. Keeping a panty liner on hand helps you monitor the amount and colour objectively.
Frequently Asked Questions
1. Can the ultrasound probe cause a miscarriage?
No. The probe stays in the vagina and does not enter the uterus, so it cannot affect the pregnancy.
2. How much bleeding is too much after a scan?
Anything heavier than a normal period, or bleeding with clots and pain, should be reported to your unit.
3. Should I have a vaginal scan if I am already bleeding?
Yes, it is often the best way to see the pregnancy clearly in the first trimester and identify the source.
This article is for informational purposes only and does not constitute medical advice. Always contact your midwife, GP, or maternity unit if you experience bleeding or pain in pregnancy. In an emergency, call 999.
Further reading:
Related articles:
- bleeding-after-internal-exam-pregnancy.md
- what-to-expect-epu-appointment.md
- bleeding-after-sex-early-pregnancy.md