Do not feel pain when injured, scalded, pinched, or cut by sharp objects? Eits, don't be proud yet! Don't tell me, you suffer from congenital insensitivity to pain with anhidrosis or CIPA. CIPA is a rare birth defect. This condition occurs when a person is unable to feel heat or cold, does not sweat (anhidrosis), and does not feel pain when injured, bumped, or injured. This Causes CIPA Normally, when the body is injured, the ends of nerve cells will send messages to the brain in the form of pain or pain. Furthermore, the brain will give commands to these body parts to stay away from the cause of the injury and make movements to protect themselves or reduce pain. For example, when your hand is exposed to a hot object, the ends of nerve cells in the skin of the hand will send messages to the brain in the form of pain. After that, the brain will respond reflexively to pull the hand away from the object. Well, in people who experience CIPA, there is a mutation in the NTRK1 ...