What stage of hair growth is referred to as the degeneration stage?

The degeneration stage of hair growth is referred to as the catagen phase. During this stage, which is transitional in nature, hair follicles begin to shrink and the hair strands detach from the nourishing blood supply. The catagen stage represents a brief period where growth stops, and hair is prepared to eventually shed.

Typically, this phase lasts for about 2 to 3 weeks, representing a small portion of the overall hair growth cycle, which consists of the anagen (growth), catagen (degeneration), and telogen (resting) stages. Understanding these stages helps in various cosmetic and medical procedures related to hair, since targeting specific phases can influence outcomes in hair restoration and treatment practices.