(Concern) I'm worried because I have a lot of moles on my arm.

Maybe because the sun was hot and intense this summer, I suddenly developed too many moles on my arms. I used to have clear skin without blemishes, but now that there are many moles on my arms, it doesn't look good. I usually don't have moles, but having many in visible areas makes me quite worried. If I go to the dermatologist and have all the moles removed, will it be okay? They won't come back, right? I'm really 고민이 많이 되는데 (worried), if anyone has had their moles on their arms removed, please give me some advice.