Aplasia cutis congenita (1429)

Key points below

What is Aplasia cutis congenita (ACC)?

What causes it? 

We do not know what causes ACC. The patch forms before birth when the skin does not develop normally. 

How is it diagnosed? 

A doctor, called a dermatologist, looks at your child’s skin. Some tests may be needed to see if there are any other problems. 

How is it treated? 

ACC often heals at birth. During the newborn exam a small scar is seen where the ACC was. If it is not healed at birth, it normally heals on its own within a few months. The only treatment needed is gentle washing with a mild soap. If there are signs of infection, an antibiotic ointment may be needed. Once the area is healed, there will be a small scar. If the area is on the scalp, hair may be missing from the scar area. Surgery may be needed if hair is missing or to improve the look of the scalp. 


Call your child’s doctor, nurse, or clinic if you have any questions or concerns or if your child has special health care needs that were not covered by this information.