Pork worms: Adult worms are milky white in shape, flat and long like a belt, thin, slightly transparent, about 2 to 4 meters long, thin at the front, and gradually flattened and widened backward. The scolex is approximately spherical, with a diameter of 0.6 to 1 mm, and contains no pigment. In addition to 4 suckers, the top also has an apical process. There are 25 to 50 small hooks on it, arranged in two inner and outer circles. The hooks in the inner circle are larger. The outer ring is slightly smaller. The neck is slender, only about half the diameter of the head. The number of segments on the chain is about 700 to 1,000. The segments near the neck are short and wide; the segments in the middle are nearly square, and the segments at the end are rectangular. There is a reproductive pore on the side of each segment, which is slightly larger than this, and is regularly distributed on both sides of the chain body. Each segment has a set of male and female reproductive organs. There are about 150 to 200 testicles. The vas deferens runs sideways and opens into the reproductive cavity through the penile sac on the outside of the longitudinal excretory duct. The vagina is behind the vas deferens. The ovary is located in the center of the posterior 1/3 of the segments and is divided into three lobes. In addition to the left and right lobes, there is another central lobule between the uterus and vagina. The vitelline gland is located behind the ovaries. The uterus filled with eggs in the gestation section branches to both sides, with about 7 to 13 branches on each side, and each branch continues to branch into an irregular branch shape. Each gestational segment contains approximately 40,000 eggs. The eggs are spherical or nearly spherical, with a diameter of 31 to 43 μm. The egg shell is very thin, with an embryonic membrane inside. After the eggs are dispersed from the gestation point, the egg shell has mostly fallen off, and is called an incomplete egg. The embryonic membrane is thick, brown, composed of many prisms, and appears as radial stripes under a light microscope. The embryonic membrane contains spherical hexunccariae with a diameter of about 14-20 μm and 3 pairs of small hooks.

Porcine cysticerci are as big as soybeans and are white translucent cysts filled with transparent cyst fluid. The cyst wall is divided into two layers, the outer cortex and the inner interstitial layer. The interstitial layer thickens toward the inside of the cyst to form a scolex that rolls inward and shrinks. Its morphological structure is the same as that of adult insects.