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.
Alopecia areata â an autoimmune disease that affects up to 2% of the population. It causes round patches of hair loss and can lead to total baldness. In many cases, the hair regrows. There are about 50 different hair loss disorders among men and women.