Same blood groups do NOT cause marriage problems. The one real medical note is Rh factor in pregnancy, and modern medicine handles it completely. ## The honest answer Social-media posts scare couples about “same group marriage”. ABO matching matters for transfusions, not weddings. The single genuine consideration: an Rh− mother with an Rh+ baby can develop antibodies, prevented routinely with anti-D injections. Get the wife’s Rh status known in pregnancy (it is tested routinely in India anyway); everything else is superstition. ## If this is your moment Blood cannot wait for curiosity to settle, patients wait in hours, not weeks. If you are healthy and between 18 and 65, register as a donor (two minutes, phone OTP) and let the system call you only when someone near you actually needs your group. Related: rh and pregnancy
Blood groups
Blood group matching for marriage: what actually matters
Same blood groups do NOT cause marriage problems. The one real medical note is Rh factor in pregnancy, and modern medicine handles it completely.
People also ask
Can same blood group people marry?
Yes, same-group couples have zero blood-related marriage problems.
Does O+ and O− marriage cause problems?
Only the standard Rh-pregnancy note: Rh− mothers receive routine anti-D injections; pregnancies proceed safely.
Which blood groups should not marry?
None, no combination prohibits marriage. Rh awareness in pregnancy is the only medical footnote.
About this article
Written by Assam Blood Donor team. Medical review: pending, content follows published national (NBTC/NACO) guidance and is for general education, not personal medical advice. Last updated 11 Sept 2026.
Sources: NBTC donor selection criteria · standard donation-centre practice
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