Blood Group O- (O negative): Be Prepared with Our Wallet Medical Card

Make it easy for first responders to see you're Blood Group O- with our handy Blood Group Wallet Medical Cards.

These cards are the same size as most credit cards, measuring 86mm by 54mm (3.38 inches by 2.13 inches). This makes them a perfect fit for your wallet or purse.

If you're Blood Group O, it means you don't have A or B antigens on your red blood cells. The minus sign in O- indicates that you also don't have the Rh factor protein on your cells.

It's a good thing to know your blood group. If you ever need a blood transfusion, getting the right blood type is super important. Plus, your blood type can give you some insights into other health-related matters.

Carrying a Blood Group Wallet Medical Card is smart if you want a quick way to show your blood type, especially if something unexpected happens. It's a good fit for everyone - whether you love sports, travel often, or work in a job with some risks. If you've been through a blood transfusion before or if your blood type is pretty rare, this card will come in handy. In short, having a Blood Group Wallet Medical Card is just common sense. It ensures the right people get the right info when it's most needed.