Sexually transmitted infections (STIs) can affect both men and women, but the symptoms may differ. In men, STIs often go ...

There are many causes of an armpit rash. Many respond to home remedies or over-the-counter treatments, but some may need medical treatment.

Why your arm might be sore after getting a vaccine. Pain and rashes are normal responses to foreign substances being injected into our bodies. But how much pain you experience after a shot depends ...

Many common issues can cause bumps on the arms — including keratosis pilaris, which is harmless. Learn more about keratosis pilaris and other causes here.