The human body contains many natural polymers, such as proteins and nucleic acids. Cellulose, another natural polymer, is the main structural component of plants. Most natural polymers are condensation polymers, and in their formation from monomers water is a by-product.
Alopecia areata is one type of hair loss that typically causes patches of baldness. In some cases, total baldness develops. In many cases, the hair re-grows, typically after several months. In some cases, the hair loss is permanent.
1 This type of hair loss usually causes overall hair thinning and not bald patches. 2  Full-body hair loss. 3  Some conditions and medical treatments, such as chemotherapy for cancer, can result in the loss of hair all over your body. 4  The hair usually grows back.