Blood Type, Blood Group
noun
Your blood fluid type is your blood type. This is a very important thing to know in Japan for some reason.
けつえきがた
This is a jukugo word that uses the on'yomi readings of the kanji, at least the 血液 part. The 型 uses the kun'yomi reading, probably because it's an add-on word.
私は血液型がB型の人が苦手です。
I don’t like people whose blood type is B.