how many types of Blood groups are there

By sindhupradeep

@sindhupradeep (369)

India

November 25, 2006 1:57pm CST

A, AB, B, O, any more

4 responses

@zubair439 (3183)

• India

25 Nov 06

i also know these four ,not more than that...these four have + and -

1 person likes this

@sindhupradeep (369)

• India

25 Nov 06

yeah + & - are Rh group

@annihilus (2181)

• Italy

25 Nov 06

are you a vampyre?

@sindhupradeep (369)

• India

26 Nov 06

what do you mean

@mayammb (1815)

• Australia

25 Nov 06

Only 4 types + and -

@khysnews (742)

• Indonesia

25 Nov 06

much, i'm A