Do I need treatment for moles?

Since 2 years i started observing increase in number of moles like almost 10 new moles on my body not specified to any region. Most of them are on face,neck and hands. Few moles started with small dot size and slowly increased the size to some extent. Similarly i have observed 4-5 moles size increased than before. One mole has grown from dot size to the size of small seed. Now I have around 14-16 moles on face, 4 on neck, 10 on both hands. Should I get treatment for it? Is this any sign of skin cancer? Or what might i undergo if i visit a dermatologist? Please let me know answers for these few questions..i have attached image with 2 moles on my hand arm here which are there from childhood but size got increased.