What 🅰️ means
It is the boxed A for blood type.
After donation, transfusion, 🩸 or 💉, read it literally as that medical label.
On its own in styled text it can swap in for the letter A, like an A-grade stamp for emphasis; that is decoration, not a medical disclosure.
Neutral and niche in medical talk; playful or decorative when it replaces an ordinary A.
Do not infer someone's actual blood type from a lone 🅰️.
Don't confuse it with
4Worth knowing
- 🅰️ is not one character. It is 2 of them glued together, which is why deleting it sometimes takes two presses of backspace and why it breaks character counters.
Questions people ask
1Why does 🅰️ look different on other phones?
Every platform draws its own artwork for the same code point. The character you send is identical; Apple, Google, Samsung and WhatsApp each render it in their own style.
How to type 🅰️
Windows
Win+.Open the emoji picker and search “A button (blood type)”.
macOS
Control+Command+Spaceopens the character viewer.
iOS / Android
Emoji keyboard → search “A button (blood type)”.
Chat apps
:a:the common shortcode; support varies by platform.HTML
🅰️Codes and encoding2 code points
HTML decimal
🅰️
HTML hex
🅰️
CSS content
content: "\1F170\FE0F";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%F0%9F%85%B0%EF%B8%8F
1
On screen
2
Code points
3
JS .length
7
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.