Why is the corner of my baby’s mouth deviating on one side?
All about newborn care! · 21 Feb 2026 · 2 min
Summary
Explains asymmetric crying facies due to congenital hypoplasia of the depressor anguli oris muscle, and how to distinguish it from facial nerve palsy on newborn examination. Covers the association with congenital heart defects, the role of antenatal scans, pulse oximetry screening and clinical assessment, and the benign long-term outlook.
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