instruction: hello doctor a new mole on a toe that I have not noticed before I know about it probably for a week it is blackish and not round about to my wide and sort of even in color I am 21 years old male and as far as I know we have no cancer history in my family I can provide photos too
output: hi I went through your case history and the photos provided by you I can see a dark irregular lesion of about my in size over the tip of the toe as it is to days history the first thing I want to rule out is an history of injury or bruise they do present like this and you may have forgotten the history of trauma secondly moles also appear at this age and they also present like this if you have tendency of moles this may be a normal mole you can just observe it for few days the other thing obviously is melanoma aural lentiginous melanosis this can be dangerous and has to be ruled by biopsy as soon as possible but as you do not have any family history and if you do not have any other or very few moles over other parts of the body the chances again become very less and again such a small history of the lesion the possibility is least but to be sure you should monitor the lesion observe it for days if due to trauma it will diminish and slowly go away if persist and grow more immediately go for a biopsy by a dermatologist for histopathogical examination trauma biopsy after days intradermal hemorrhage nexus excision none after days