O-
Blood Group O-
Universal donor - can donate to all blood types Connect with 42+ verified donors.
42
Total Donors41
Available Now6.6%
PopulationO- Blood Compatibility
Understanding donation and receiving compatibility
Can Donate To
A+
A-
B+
B-
AB+
AB-
O+
O-
O- blood can be safely donated to 8 blood type(s).
Can Receive From
O-
O- recipients can safely receive blood from 1 blood type(s).
Recent O- Donors
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