A birthmark caused by abnormal distribution of blood vessels. Types of haemangioma include portwine stains, stork marks, and strawberry naevi. They generally disappear without leaving a scar by 5–7 years. Haemangiomas do not usually require treatment. However, a haemangioma that bleeds persistently or that looks unsightly may need to be removed, by laser treatment, cryosurgery, radiotherapy, embolization, or plastic surgery.


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