Have a small red dot on my left chest that when i scratch it it hurts my chest and the sensation feels like it hurts my left back. what can it be ?

Sounds mysterious: Dermatologists like to look at dots on the skin. For a small red dot on the chest, one can see a primary care doctor first, or go straight to a skin doctor. Reddish coloring usually means there is more blood flow to the spot. Dermatologists can use a laser to remove spots caused by tiny blood vessels (such as some birthmarks and "spider" hemangiomas), and can also talk about other treatments.