From muscle strains, bacterial and viral infections, and skin rashes, here are 9 possible causes of armpit pain and when to ...

Sciatic nerve pain can also feel numb, tingly or electric shock-like, the Mayo Clinic says. And it typically only affects one leg. Sciatica typically affects the lower back, buttock area or back ...

Getting a tattoo generally involves some pain, but the location and your personal tolerance will affect how much it hurts. Getting tattooed on an area with little fat, many nerve endings ...