Campbell de Morgan spots, also known as cherry angiomas, are common, harmless red spots that tend to appear in middle to older age individuals. They are formed by proliferating, dilated small blood vessels. These do not need to be treated unless it is for cosmetic reasons. They do tend to bleed quite a lot when poked of scratched at.
Treatment options include electrocautery or lasers to effectively close off the blood vessel.
None of these will ever turn cancerous or lead to any potential long term effects on your health. It is possible to develop new ones though.
