The catagen stage of hair is known as the:

The catagen stage of hair is often referred to as the transition phase because it marks the period where hair growth slows and the hair follicle begins to undergo changes in preparation for the shedding phase. During this stage, which follows the anagen (growth) phase, the hair stops growing and detaches from its nourishing blood supply, but it is not yet fully shed from the follicle. This transitional nature is crucial as it signifies the end of active growth and sets the stage for the hair to eventually enter the telogen (shedding) phase.

Understanding the catagen phase as a transition helps to clarify its role in the hair lifecycle and its differences from the earlier growth phase, where the hair is actively growing, and the later resting and shedding phases, where hair is either at rest or being released from the follicle. Recognizing the distinct purpose of the catagen stage within the overall hair growth cycle is essential for those studying hair removal and related practices.