Final answer:
Nevi (Telangiectatic Nevia) refers to birthmarks with dilated blood vessels. These birthmarks are typically present at birth or appear in early childhood and are characterized by an overgrowth of blood vessels in the skin, giving them a red or purple appearance. While most nevi are harmless, some may require medical intervention if they cause functional or cosmetic issues.
Step-by-step explanation:
Nevi (Telangiectatic Nevia) refers to birthmarks with dilated blood vessels. These are caused by an overgrowth of blood vessels in the skin, which gives the birthmark a red or purple appearance. They are typically present at birth or appear in early childhood. Examples of nevi include port wine stains and strawberry hemangiomas.
Although nevi are generally harmless and do not require treatment, some may need medical intervention if they are causing functional or cosmetic issues. Laser therapy, surgical removal, or medication may be recommended in such cases. It is important to consult a healthcare professional for a proper diagnosis and treatment options.