Home > ADHD Glossary of Terms > Telogen StageHairTelogen StageThe telogen phase of hair growth is when the hair takes a break from growing, and the hair follicle rests. At any given time, about 10% to 15% of our hair is in this phase. This phase usually lasts a few months.Related termsAlopecia AreataAlopecia TotalisAlopecia UniversalisAnagen EffluviumAnagen PhaseAndrogenetic Alopecia← Back to full glossary