Is it normal to sweat under your armpits?
Yep.Totally normal
Yes—underarm sweating is completely normal. Your body sweats to cool itself down, and nerves or stress can turn it up too.
Absolutely. Your armpits have sweat glands that help cool you down, and they can get going when you’re hot, exercising, nervous, or even just sitting around in a warm room.
Some people sweat more than others, and a damp shirt now and then is ordinary body stuff—not a sign you’re doing anything wrong. Antiperspirant can help if it bothers you; deodorant mostly helps with odor.