Asymmetric crying facies in neonates is a rare condition that might be due to hypoplasia of the depressor anguli oris muscle and is characterized by asymmetry of lower lip depression during crying.
Case report: We report a full-term newborn delivered by cesarean section with an uneventful pregnancy among non-consanguineous parents. The newborns have an Apgar score of 9 and 10 at 1 and 5 minutes, respectively. His birth measurements were appropriate for his gestational age. His initial clinical examination was normal, apart from the presence of a red intersourciliary macule and an asymmetric face while crying, with the right lip corner disappearing at rest. In this clinical presentation, the diagnosis of asymmetric crying facies was retained.
Conclusion: Despite the fact that our patient has no other associated malformations, any facial paralysis that disappears at rest should be treated as a sign of asymmetric crying facies, and other malformations that may be associated should be screened for.