Black stuff inside the navel is mostly skin dirt, daily strengthening of the umbilical cord care can be, avoid foreign objects to stimulate the umbilicus. Most people may find the black stuff inside the navel, usually skin dirt, can be part of the shedding of the skin tissue, external dust retention of local causes. Usually, the dirt trapped in the umbilicus does not affect the health of the organism and is not accompanied by abnormal symptoms such as pain. In some cases, a large amount of dirt can be retained by applying a hot towel to the area and then gently wiping it off with a cotton swab. If you can not effectively remove the umbilical cord dirt, you should choose to seek medical treatment and cooperate with the doctor to clean the local. People can not use their own hands to pick or foreign objects to stimulate the umbilicus, in order to prevent local skin mucosa lesions, induced infection. In daily life, the umbilicus can be properly cleaned when bathing to keep the local clean and dry. If in addition to the black stuff inside the navel, accompanied by abdominal pain, local skin redness and swelling, etc., should promptly seek medical attention.