The principle of belly button sticking to lose weight is to massage the acupoints near the navel, stimulate the stomach and promote metabolism, so as to achieve the effect of losing weight. However, it is not suitable for everyone. Umbilical patch is easy to cause allergies. In addition, people with bad stomach, serious heart disease, severe hypertension, hypoglycemia, pregnancy, menstrual period, ulcer, abdominal surgery for 3 months, postpartum half a year, and visceral bleeding are prohibited from losing weight. Liposuction and Ivey meridian fat burning are safer and more effective than umbilical application, so it is suggested to choose the appropriate way to lose weight according to your own physique.