Hi Yang Wei,
It is excellent that you are taking steps to examine your own skin. This is what I'd always recommend all my patients to do in between their annual skin checks with me. The main abnormalities to look out for can be remembered as the ABCDE of abnormal moles:
In addition, I also ask patients to look out for bleeding non-healing moles, and the “ugly duckling”. A mole that stands looks different from the rest should always be checked by a trained dermatologist.
