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.
This type of hair loss may involve both hair thinning and miniaturization (hair becomes soft, fine and short). Hormonal changes and medical conditions. A variety of conditions can cause hair loss, including: Hormonal changes. Hormonal changes and imbalances can cause temporary hair loss.