Treatment of Cystic Hygroma
A cystic hygroma might not need treatment if it is not causing any problems.

One treatment option is sclerotherapy. During sclerotherapy, a specialist injects a chemotherapeutic agent called bleomycin into the growth.

Bleomycin shrinks the growth, although it may take several therapy sessions for this to happen. A cystic hygroma can also grow back.

A doctor may consider surgery to remove the cystic hygroma, but will often wait until the child is a bit older. Surgery can cause significant scarring.

Possible complications of surgical removal include damage to nerves, arteries, blood vessels, and structures near the cystic hygroma.

Both sclerotherapy and surgery are performed under general anesthesia, meaning the individual will be asleep and unable to feel pain during the procedure.

In some cases, a baby or child may need both treatments to remove or shrink the cystic hygroma completely.