A fissure in the upper lip that is due to failure of the left and right sides of the fetal lip tissue to fuse, an event that should take place by 35 days of fetal age. Cleft lip can be on one side only or on both sides. Because failure of lip fusion can impair the subsequent closure of the palatal shelves, cleft lip often occurs in association with [..]

a physical split or separation of the two sides of the upper lip that appears as a narrow opening or gap in the skin of the upper lip. This separation often extends beyond the base of the nose and inc [..]

A condition occurring in the womb where the palate and lip do not fuse completely.

A birth defect in which the upper lip is split vertically, extending into one or both nostrils

Specific congenital anomaly involving incomplete fusion of the lip and gum in the midline of the face. The term (hare lip) is anatomically incorrect and possibly stigmatizing. [Click Here to Return to [..]

A cleft is a split between two things. Some babies are born with lips that haven't grown together while they were developing inside their mom. Cleft lips can make it hard for children to eat or t [..]

Congenital anomaly involving incomplete fusion of the lip and gums in the midline of the face. (baby, his/her lips, just not, grows together, at birth)

Congenital Defect in the upper lip where the maxillary prominence fails to merge with the merged medial nasal prominences. It is thought to be caused by faulty migration of the Mesoderm in the head re [..]

Congenital defect in the upper lip where the maxillary prominence fails to merge with the merged medial nasal prominences. It is thought to be caused by faulty migration of the mesoderm in the head re [..]

The incomplete formation of the upper lip.

An abnormality in which the lip does not completely form. The degree of the cleft lip can vary greatly, from mild (notching of the lip) to severe (large opening from the lip up through the nose). Cleft palate

an abnormality in which the lip does not completely form. The degree of the cleft lip can vary greatly, from mild (notching of the lip) to severe (large opening from the lip up through the nose).

A birth defect in which the lip does not completely form. The degree of the cleft lip can vary greatly, from mild (notching of the lip) to severe (large opening from the lip up through the nose). Clef [..]