What might cause my palms to feel unusually hot?

Your palms might feel unusually hot because of how your body's nervous system controls temperature and sweat. The nerves in your hands send signals that tell your sweat glands when to produce sweat to cool you down.

Sometimes, this system might be overactive or work in a slightly different way, leading to extra warmth or sweating, even when you are not feverish. One example of this is palmar hyperhidrosis—a condition where the palms sweat excessively. Research suggests that this might be due to a central nervous system dysfunction where the signals are too strong.

In addition, when your body experiences stress or is in a warm environment, the nerves and blood vessels in your palms can become more active, making them feel warmer than usual. If you notice that your hot palms come with discomfort or other changes, you can use a free symptom checker to help identify potential causes and determine if you should talk with a healthcare provider about treatments that help regulate sweating and temperature control.