noun
- plural of catagen; a stage in the hair growth cycle in which the hair follicle shrinks and growth stops
Usage: technical; biology
Examples
- The catagens phase typically lasts two to three weeks for each hair follicle.
- During catagens, the hair stops growing and the follicle begins to shrink.
- Hair loss can increase when many follicles enter the catagens stage simultaneously.
- Understanding catagens is important for dermatologists studying hair loss conditions.