Threat to life or function
	Kasabach-Merritt syndrome (coagulopathy)
	Anatomic site
	Vision impairment
	Respiratory impairment
	High-output cardiac failure (mortality up to 50 percent)11
	Hepatic lesions
	Other internal lesions
Location in scarprone area
	Nose
	Lip
	Ear
	Glabellar area
	Any large facial hemangiomas
	Pedunculated lesions
Tendency to bleed or to become infected
Rapid rate of growth (tripling in size within weeks)