I'm a 23, year old female. I've noticed over the last couple of months a fairly rapid increase in the number of moles I have! I should point out that they are not large cancerous looking ones but I am slightly concerned at the number of new ones. Basically they're just small typical looking moles but they are appearing all over. I don't spend much time in the sun and don't use sunbeds. A few moles that I have had for as long as I can remember have changed size and shape. What could it be?