There are two kinds of threads used to sew wounds: absorbable and non-absorbable. The raw material used for absorbable biological thread is called thread pig, and the meat can be torn into long strips for medical use.

Pork tapeworm (a parasite in pigs) is born in pigs. Because the worm looks like a thread (some people think it looks like millet), this kind of pork is called pork silk pig, and some are called rice pork. Can't eat. This parasite can also spread in people.

Pigs (pigs) are vertebrates, mammals, domestic animals and ancient omnivorous mammals, mainly divided into domestic pigs and wild boars. At present, people think that pig is the abbreviation of pig family. According to different breeds, the physical characteristics of pigs are also different. Usually the main physical characteristics are big ears, long head, short limbs, straight nose, fat body and narrow waist and back. The hair is thick and hard, and its color is usually white, pink, black, brown and fancy. Pigs are omnivorous mammals, with fat body, short limbs, long snout, gentle personality, strong adaptability and fast reproduction. There are black, white, sauce red or black and white flowers.