Ladies...part of this post is to reassure myself, the other part is to see if anyone else has had a LO with this...
Today during our a/s, she showed us we are having a boy (yay!) and continued to check all of the organs,etc. While she was doing this, she was filling us in on what she was measuring and would make comments about how it was measuring well or "looks great". When she scanned the umbilical cord, she noticed there was only one artery (normally, there's two). Her words during this finding, "this isn't anything to worry about. It's In the umbilical cord and not inside the baby. It happens pretty often. The only difference will be, you will end up having more ultrasounds to monitor growth." She then again, said its nothing to worry about.
After our appt, we had our normal OB check up, which the doctor only made mention that we had an ultrasound, but made no mention of the umbilical cord.
So I left feeling great! A healthy baby boy...then I get home and make the mistake of going to doctor google. Google said that's it's the most frequent condition of the umbilical cord and is usually not serious. In serious cases, a baby can have renal, cardiac and gastrointestinal problems. This can also be seen in Trisomy 18. (To give a little background, DHs sister had Trisomy 18, but doc wasn't concerned at our first appt because of my age and it didn't happen on my side of the family). I saw this and instantly started to worry. BUT, I keep telling myself, Trisomy 18 babies have low birth weight (ours was measuring a week ahead) and the cord is just one of the many things they would see in a baby with trisomy 18. Since everything else was normal, i have to think our baby will be one of those cases where it will hopefully be a nonissue like most of the cases that arise.
Can you tell I'm trying to reassure myself?

until google, I had no reason to believe there was anything wrong. I should know better!
Anyone else know of this? Thank you for listening...DH doesn't seem the least bit worried about it, so wanted to see what kind of experience you have!
Re: Single Umbilical Artery? (Long)
I'll be thinking about you and your baby. Hope everything goes ok. Did you find out if you have a boy or girl?
We didn't do an amnio or anything and she had no other markers for any issues. We had extra sonograms to monitor growth, kidneys and heart.
She was our biggest baby and is definitely our "fire cracker"!
She does now have vesicouretal reflux (VUR) where her bladder refluxes urine up to the kidney. This could be related to cord or may not me. She gets daily antibiotics to prevent kidney infections and yearly kidney testing (which she had this morning in fact). She should eventually outgrow it.
Stop googling it! You will scare yourself!
Eta: sorry, my phone was acting crazy last night and wouldn't let me finish my post. Sorry about the multiple posts!