Your birth scar connects with nerve fibers that link the inner wall of the abdomen to the spinal cord. But, in addition, they are the same fibers that reach the bladder and urethra to inform the nervous system that we want to urinate.
Therefore, if you insert a finger and press, the brain can get confused and think that you need to go to the bathroom.
Inside the navel
What can also happen to you when you touch yourself there is that you find yourself with a kind of fluff, a curious phenomenon studied a few years ago at the University of Sydney (Australia). The scientists concluded that these pellets contain textile debris, dead skin, and hair, and that they are most often produced by older, hairy, navel-turned men.
Other research from the University of North Carolina also detected more than three hundred species of bacteria in umbilical waste .
