# Do you know your blood type? **URL:** \ **Category:** In My Humble Opinion\ **Created:** [July 25, 2018, 3:06am UTC](https://boards.straightdope.com/t/do-you-know-your-blood-type/818539 "2018-07-25T03:06:22Z")\ **Posts on this page:** 9\ **Page:** 5
**Author:** ![Siam\_Sam](https://avatars.discourse-cdn.com/v4/letter/s/d78d45/32.png) [@Siam\_Sam](https://boards.straightdope.com/u/Siam_Sam)\ **Post date:** [August 7, 2018, 4:53am UTC](https://boards.straightdope.com/t/do-you-know-your-blood-type/818539/82 "2018-08-07T04:53:35Z")
> [@Dendarii\_Dame](#): > > I’m B positive. Everyone should B positive. ---
**Author:** ![Sunspace](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sunspace/32/1250_2.png) [@Sunspace](https://boards.straightdope.com/u/Sunspace)\ **Post date:** [August 7, 2018, 5:02am UTC](https://boards.straightdope.com/t/do-you-know-your-blood-type/818539/83 "2018-08-07T05:02:53Z")
I’m Type O+. What’s CMV? ---
**Author:** ![Siam\_Sam](https://avatars.discourse-cdn.com/v4/letter/s/d78d45/32.png) [@Siam\_Sam](https://boards.straightdope.com/u/Siam_Sam)\ **Post date:** [August 7, 2018, 5:12am UTC](https://boards.straightdope.com/t/do-you-know-your-blood-type/818539/84 "2018-08-07T05:12:57Z")
> [@Sunspace](#): > > I’m Type O+. > > What’s CMV? Cytomegalovirus. Akin to herpes, I think. ---
**Author:** ![Yllaria](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/yllaria/32/3452_2.png) [@Yllaria](https://boards.straightdope.com/u/Yllaria)\ **Post date:** [August 7, 2018, 5:21am UTC](https://boards.straightdope.com/t/do-you-know-your-blood-type/818539/85 "2018-08-07T05:21:33Z")
From the CDC website - > [@](#): > > Over half of adults by age 40 have been infected with CMV. Once CMV is in a person’s body, it stays there for life and can reactivate. Most people infected with CMV show no signs or symptoms. However, CMV infection can cause serious health problems for people with weakened immune systems and for unborn babies My son is O neg, CMV neg, with easy to hit veins. The Red Cross calls him as soon as he’s re-qualified to give. CMV neg blood is the only kind that can be given to premies. ---
**Author:** ![TokyoBayer](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tokyobayer/32/13989_2.png) [@TokyoBayer](https://boards.straightdope.com/u/TokyoBayer)\ **Post date:** [August 7, 2018, 1:00pm UTC](https://boards.straightdope.com/t/do-you-know-your-blood-type/818539/86 "2018-08-07T13:00:19Z")
What a timely thread. I just cut my thumb tonight as we were putting together some kitchen stools. It appears to be red. I suppose the lack of pointy ears should have been the first clue. ---
**Author:** ![bordelond](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bordelond/32/150_2.png) [@bordelond](https://boards.straightdope.com/u/bordelond)\ **Post date:** [August 7, 2018, 2:01pm UTC](https://boards.straightdope.com/t/do-you-know-your-blood-type/818539/87 "2018-08-07T14:01:48Z")
> [@kenobi\_65](#): > > I do, though I didn’t know it until I started donating blood, around a decade ago. (A+, I got the highest grade. 😉 ) Same blood type, same mnemonic 🆒 Didn’t learn it until I was in my mid-20s and went to donate blood, though. ---
**Author:** ![Filbert](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/filbert/32/3433_2.png) [@Filbert](https://boards.straightdope.com/u/Filbert)\ **Post date:** [August 7, 2018, 2:23pm UTC](https://boards.straightdope.com/t/do-you-know-your-blood-type/818539/88 "2018-08-07T14:23:53Z")
Nope. Due to a combination of overseas travel and a tendency to low iron, I’ve never really been a suitable donor and there’s not been another reason to find it out. ---
**Author:** ![Inigo\_Montoya](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/inigo_montoya/32/124_2.png) [@Inigo\_Montoya](https://boards.straightdope.com/u/Inigo_Montoya)\ **Post date:** [August 7, 2018, 3:50pm UTC](https://boards.straightdope.com/t/do-you-know-your-blood-type/818539/89 "2018-08-07T15:50:50Z")
> [@Alessan](#): > > AB+. > > Universal recipient, bitches! Same. Just pour the crimson in me Jimson. ---
**Author:** ![Mahaloth](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mahaloth/32/1079_2.png) [@Mahaloth](https://boards.straightdope.com/u/Mahaloth)\ **Post date:** [August 7, 2018, 7:24pm UTC](https://boards.straightdope.com/t/do-you-know-your-blood-type/818539/90 "2018-08-07T19:24:43Z")
Yes, and I’m glad I know in case I need to. I’m B+ [Previous page](https://boards.straightdope.com/t/do-you-know-your-blood-type/818539.md?page=4)