Upturned corners of mouth 2010-06-26T03:17:08Z Upturned oral commisures This finding should be assessed with the mouth closed, the lips in relaxed contact, and the face relaxed. The finding may be difficult to assess if the upper lip is enlarged. Upturned mouth HP:0010805 Oral commissures positioned superior to the midline labial fissure. Upturned corners of mouth Abnormality of mouth shape