I don't have a lot of moles except for a couple tiny ones here and there. The other week I noticed that a tiny one on at the top of my butt had grown considerably. I know I'm supposed to be especially concerned if the borders are irregular, it is asymmetrical or uneven colored. This mole only used to be about 1.5 mm and now it is 5 mm in diameter, color may have changed little, it sticks out more, but other than that is pretty uniform. I would just go to a dermatologist but I don't have any health insurance because I'm a student. Any suggestions?