The mud in the navel should not be picked as much as possible, and if you really want to clean it up, it is recommended to look for professional help. If you pick the dirt from your belly button directly by hand, not only will you not be able to clean it, but you will also increase the possibility of inflammation in your body, such as umbilicus, septic infection, etc. If the skin of the umbilicus is broken, it may also lead to inflammation into the interior of the abdominal cavity, causing peritonitis or other organ damage. However, if the belly button is dirty and not cleaned for a long time, it can also lead to inflammatory infections, and the correct cleaning method needs to be adopted. You can use a cotton swab dipped in a small amount of olive oil, body wash, etc. in the shower to massage gently on the navel, and then rinse with water after the dirt has softened. If the belly button is red and swollen due to improper cleaning, and there is purulent discharge, you need to go to the hospital for treatment.