Mud in the navel is not recommended to use your hands to pick, so as not to cause discomfort symptoms such as abdominal pain, diarrhea and other digestive symptoms. The correct method should use a cotton swab dipped in water to gently rub it out, you can also use warm water, soap to strengthen the local cleaning, cleaning the local sweat and shedding keratinocytes, to keep the local dry, clean and clean. Belly button is after the birth of the fetus, the umbilical cord off the scar left behind, the belly button in the dirt is the skin shedding cells and sweat, dust and other impurities and so on the mixture, accompanied by sour odor odor, the essence of the body with other locations on the rub out of the mud no difference, generally speaking, these dirt will not have an impact on health. However, it is not recommended to use your hands to gouge the dirt inside, the correct practice should be to use a cotton swab dipped in water to gently rub or bath with shower gel cleaning. Picking at the dirt inside is likely to lead to a breach in the navel area and cause an infection, which can lead to umbilical cord infection. Although this is most common in newborn babies, adults can occasionally suffer from umbilical cord infections due to mishandling of the navel. Secondly, although the function of the umbilical cord has been degraded, the nerve reflexes of the internal organs are still present, and forcefully picking at the navel will cause irritation to it, resulting in digestive discomforts such as abdominal pain, diarrhea, and so on. If there is any discomfort, it is recommended to go to a regular medical institution for examination and targeted treatment under the guidance of a professional doctor.