Pakistan has the highest rate of inbreeding in the world, at around 65%.

Pakistan has the highest rate of inbreeding in the world, at around 65%.

Children of cousin marriages might come out normal at first, but over generations of this, this is often the result.

Please don’t marry your cousin. pic.twitter.com/08xmNotQ1H

— Dr. Maalouf ‏ (@realMaalouf) June 23, 2026