Noonan syndrome is agenetic disorder, but not all cases are inherited.

This article discusses Noonan syndrome symptoms and its causes.

What Is Noonan Syndrome?

Pediatrician examining child

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The genetic change alters a protein that is involved in modifying the rate at which the body grows.

This is significant because the human body grows through the process of cell division, especially during childhood.

Cell division continues throughout life as the body repairs, regenerates, and renews.

Facial and body appearance cannot reliably determine whether someone definitely has Noonan syndrome or not.

Turner syndrome, though, only affects females and can also disrupt reproduction and fertility.

Diagnosing Noonan Syndrome

The most definitive evidence of Noonan syndrome is a genetic test.

How Is Noonan Syndrome Treated?

The treatment of Noonan syndrome is focused on several aspects of the disease.

Typical traits include short stature, angular head and eyes, and a thick neck.

Genetic testing, blood tests, and heart function tests contribute to an accurate diagnosis and appropriate care.

2018;7(4):223228. doi:10.5582/irdr.2017.01056