Without the information requested in my previous response, I can only give you a general answer, but I hope this helps.
You have to observe for signs in a mole which are defined by the acronym ABCDE.
A is for Asymmetry: One half of a mole or birthmark does not match the other.
B is for Border: The edges are irregular, ragged, notched, or blurred.
C is for Color: The color is not the same all over and may include different shades of brown or black, or sometimes with patches of pink, red, white, or blue.
D is for Diameter: The spot is larger than 6 millimeters across (about ¼ inch – the size of a pencil eraser), although melanomas can sometimes be smaller than this.
E is for Evolving: The mole is changing in size, shape, or color.
You have to observe for these signs. But dont get obsessed about it, moles are very common as you have probably observed and only very rarely do they pose a risk.
SHow this to your doctor at your next appointment.
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Thank you and I wish you the best of health - stay safe!
Dr. P. Jyoti