The so-called angular kneading method is to take the thick edges and corners of the scraping board as the center and the effective acupuncture points as the focus, and apply continuous action of rotating and circling to drive the subcutaneous tissue to knead, with moderate strength. Scraping the stomach can relieve constipation and lose a small belly. Generally, if you insist on scraping for three days to a week, constipation will be improved to some extent. Stick to it for half a month to a month, and you will obviously feel lighter and less abdominal fat.