Decreased growth (hypoplasia) of the nasal bridge can occur in association with infectious or genetic diseases. A low or absent nasal bridge is a relative term. Decrease in height of the nasal bridge is best seen from a side view of the face. A low nasal bridge may be almost flush with the plane of the face, the eyes, or the forehead.

• normal variant
• congenital syphilis
• Down's syndrome
• cleidocranial dysostosis
• Williams syndrome
• other congenital syndromes

You have questions about the shape of your child's nose.

The specific diagnosis of the cause of a low nasal bridge is based on a family history, medical history, and thorough physical evaluation.

Medical history questions documenting low nasal bridge in detail may include:

• What other physical abnormalities are also present?

Diagnostic tests:
Laboratory studies such as chromosome studies, enzyme assays (blood tests to measure specific enzyme levels), X-rays, and metabolic studies may be ordered to confirm the presence of a suspected disorder.