The navel can be picked, but the accurate term should be to clean the navel, and not just pick or use nails, with hard cotton swabs to pick the navel. Because this may lead to pain in the navel, it may also lead to damage to the skin around the navel, which is more able to cause bacterial infection and inflammation of the navel. Because the inside of the belly button will also have dirt, that is, dirt. Especially in the case of obese patients with deep belly buttons, the inside of the navel is very dirty. After the navel is completely soaked with warm water or with iodophor solution, you can use a cotton swab to gently clean the navel. If there is more dirt inside, you can also use tweezers or use vascular forceps to gently clip out the dirt, pay attention to clip out after disinfection with iodine volts again. If there is significant pain and discomfort at the belly button, you need to apply an antibiotic ointment to prevent infection at the belly button if necessary.