

A new red mole/mark on chest - have fair skin and prone to moles but worried
Bright red mark has appeared on my chest over the past few weeks. Worried as this area is often exposed to sun but I do use SPF every day, however I am prone to moles and have very mole prone fair skin, and am notoriously worried about skin cancer risks. Can anyone advise? The shape is fairly regular and round but there is one darker side.