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Term · Clinical

Fetal haemoglobin

The form of haemoglobin made before birth. It does not sickle, which is why switching it back on treats sickle cell disease.

Written by The CRISPR Atlas editorial team Last updated Aug 19, 2026

Educational information only This page is a reference, not medical advice. Research and regulatory status change; check the last-updated date above and confirm anything important against the primary sources listed.