Good hospitals generally have dermatology departments. There's nothing wrong with ordinary moles. You can show it to the doctor. The skin cancer you mentioned is melanoma, and there are very few yellow people. In short, you'd better go to a hospital with good technology, which is cleaner. If the mole is not clean, it will grow back and stimulate him to grow bigger.

Good moles generally don't leave scars. This is a technical job. If it is shallow, dirty and deep, it will leave a scar.