 [ Symptoms ] weird bump on skin that changed from pink to brown and developed a sore it is firm and not painful what could it be  this bump developed a few years ago it does not hurt but sometimes the skin around it gets very sensitive and feels like it is burning it does not hurt but it has changed color and it developed a wound when i do not remember injuring myself there it kind of worries me any idea [ Disease ] there are so many possibilities that it would not be in your best interest for me or any medical provider to blindly guess a description is not sufficient to make this important call even dermaologists often cannot determine the true nature of a skin lesion just by looking at it sometimes it need to be removed biopsy to have a pathologist examine it under a powerful microscope whether than worry that this might be a skin cancer of some sort i would highly recommend that you see a dermatologist you have worried about this weird skin lesion for two years so it is time that you take it this one more important step and allow a professional to address your concern