Anti-M Antibodies

[Bea2678]

I got a call yesterday from my midwife telling me my bloods came back showing anti-m antibodies. She was honest and said she wasn’t sure what this meant and would have to find out but I have a hospital appointment Monday to further look into it. Apparently it’s rare, I’m super worried. Does anyone have any information about this or possibly had the same situation? I am only 10 weeks so we have found it very early on.

Hi. Same boat here. Do you have any more info? Thank you so much,

Hi, can I ask what the outcome was for you both? I have found myself in the same situation and am Worrying x

Hi. All went well with my baby. This was actually my third anti-M baby. I freaked out because the antibodies on this pregnancy were IGG + IGM type. The IGg type can cross the placenta, the IGM type don't. My two previous pregnancies the antibodies were all igm, so there was no major cause for concern. I advise you to go on ISO MOM'S Facebook group. They share valuable information. Just to give you some peace, you'll find on that group and on all medical articles that anti M antibodies rarely (very rarely) cause any issues. I had three babies, all healthy, all amazing. I wish you all the best for you and your baby.

I have been diagnosed this pregnancy with this! I was initially really worried (not helped by being initially just told I had rare antibodies but not which…). The way that it was explained to me is that there are a whole range of rare antibodies and if you were to have them then anti-M is a “good” one to have. What it has meant in practice is that they will take a cord blood sample when the baby is born (but still allow delayed clamping) and they will have blood on hand should I need a transfusion (rare, but possible). That and everyone seems to find it really interesting as apparently they don’t come across rare antibodies very often! For context I am going to a small rural hospital, not a large teaching hospital, but they have got support and guidance from others to make sure I get the right care.

Thank you both! This has put my mind at ease a bit. I have my first scan & appointment with consultant today x