I have a mole that is solid brown, not irregular in shape or color, but has dried up and has a rough texture. is it cancer?

Should be seen: Any mole that makes the owner suspicious deserves to be seen by a physician who's good at skin. This is jmore likely an actinic keratosis, which itself ought to be at least followed.

Texture : It is difficult to make a diagnosis without visualizing it. A change in texture could indicate a cancerous change or not . Have a dermatologist evaluate to be safe.

Changing skin lesion: Any skin lesion that changes should be seen by a doctor.