Why do parts of my stomach tan whilst other parts stay white?

[BumbleB98]

When I first started going on holiday abroad I noticed that some of the skin on my stomach does not tan, I have never burnt it and it doesn’t go itchy or anything like that and when I lose my tan I go back to the pale colour and while I’m not worried about it, I would like to know what it is. I have had many people giving ideas on what it could be like hyper pigmentation or acute vitiligo but I do not know

[purple1234567]

For an accurate cause, you will need to see a doctor- there are many possible reasons you would tan differently in some areas, some of them you have heard already- but a doctor will be the only one who can give you an in person exam and gather more of your medical history to give you an accurate diagnosis.