Can transvaginal scans cause spotting during pregnancy?

Question

Hi doctor,

I have a history of recurrent early miscarriage (before seven weeks). Investigations pointed to high autoimmune antibodies and high NK cells. With medication, I conceived naturally and had a successful pregnancy. I am now pregnant again (unplanned) and am 7 weeks + 3. I had some spotting and cramping three days ago. The spotting was light and stopped within a few hours. The cramping continued for another day. Blood hCG levels are rising very well and are currently over 83,000. A transvaginal scan yesterday showed the heartbeat, and we were told all is well. Today, I had some light spotting (dark brown) and discomfort, and passed a brown clot. My query is whether this may have been the cause of the spotting the other day, or maybe this was caused by irritation from the TV scan yesterday. I am concerned anyway, and any advice would be greatly appreciated. Current medications: Eltroxin, Prednisolone 5 mcg, Clexane. Starting intralipids next week to target NK cells.

Kindly guide.

Answer 1

Hi,

Welcome to icliniq.com.

I understand your concern. From your history, I do not see any reason for you to worry. This spotting could be from mild erosion on the surface of the cervix, which may bleed spontaneously, during sex or due to the scan probe. In your history, as you have not mentioned pain, I can say for sure that there is no intrauterine blood. The scan also did not pick up any hemorrhages (attachment removed to protect patient identity). The medications you are having are absolutely the perfect ones. Most of the miscarriages before 12 weeks are due to genetic problems. But in the present scan, as the baby's growth has been adequate, you do not need to worry. This clot could be an implantation bleed. This is normal and nothing needs to be done.

I hope this helps.

Thank you.