The neck bone of pigs contains a large number of lymph nodes, lipomas and thyroid gland. The neck bone of a pig is the blade of a pig when it is slaughtered. There are many blood stains, the meat is red, the meat is tender and old, and the fat and thin are alternating. Lymph nodes can filter, kill and devour pathogenic microorganisms and viruses, but at the same time, they also accumulate a large number of germs and viruses, which are not easy to kill after a short period of heating, so they are prone to infection after eating. \x0d\ For more information about why pig neck bones are inedible, please visit:/ask/6af8dd1615826779.html? Zd view more content