Chitin is a primary component in the exoskeletons of arthropods and crustaceans and is also found in the cell walls of fungi. It's a polysaccharide, and it's excreted by the epidermal cells in arthropods.
Definition & Facts. Hemorrhoids, also called piles, are swollen and inflamed veins around your anus or in your lower rectum. External hemorrhoids form under the skin around the anus. Internal hemorrhoids form in the lining of the anus and lower rectum.
Surgery - Recommended for extreme cases of hemorrhoids. The most extreme cases of hemorrhoids stem from what is called prolapsed hemorrhoids. These hemorrhoids have grown to the point where they are an external appendage and cause great discomfort. Many suffering with prolapsed hemorrhoids are recommended by their doctor to consider a surgical approach to their suffering.