The navel can be acupuncture. The previous disinfection level is not enough, which is easy to cause infection. Once the navel is infected, the consequences are terrible. It's different now. As long as the disinfection is thorough, there will be no problem with acupuncture. There is a kind of acupuncture called umbilical needle, which is specially done on the navel and has a good effect. What this doctor is going to operate may be umbilical needle therapy.