In what stage does hair fall out of the follicle?

The telogen stage is the phase in which hair falls out of the follicle. During this stage, the hair is in a resting phase and is not actively growing. It typically lasts for several weeks to a few months. Following this rest period, the hair will eventually shed, making way for new hair to enter the anagen phase, which is when active growth occurs.

In the context of the hair growth cycle, the anagen phase is the active growth stage, while the catagen phase represents a transitional phase where hair growth stops, and the follicle shrinks. The exogen phase, often considered as part of the telogen phase, is specifically when the hair is being shed from the follicle. However, fundamental to understanding hair loss is recognizing that the telogen phase marks the broader context of rest and eventual shedding, leading to the characteristic loss of hair.