Telogen: Resting phase before shedding

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What is Telogen?

Telogen is the final resting phase in your hair’s natural growth cycle. This phase is a built-in dormancy period that allows your hair follicle to take a break before starting a new hair.

Think of it like a plant going dormant in winter. The hair stops growing, but the root remains alive under your scalp. Most people miss this: a hair in telogen is already dead and is just waiting to be pushed out by the new growth underneath.

It’s a completely normal part of your hair’s life. In fact, about 10-15% of your hairs are in telogen at any given time. This is why you see daily shedding in your brush or shower drain.

When Telogen Turns Into a Shedding Storm

Normally, telogen lasts about 3 months before the hair sheds. But sometimes, a major shock to the system can force way more hairs into telogen all at once.

This condition is called telogen effluvium. Think of it like a factory where too many workers decide to take their break simultaneously. The result is a noticeable increase in shedding about 2-3 months after the trigger.

I see this constantly with clients after severe stress, a high fever, crash dieting, or surgery. They often panic, but understanding this delay is key to diagnosing the cause.

The Telogen “Club Hair” and How It Lets Go

A hair in the telogen phase develops a unique, club-shaped root. This white bulb at the end of the shed hair is a clear sign it exited during telogen.

The science is simple. The follicle shrinks and the hair shaft becomes fully keratinized, or hardened. A tiny “club” forms at the base, anchoring it loosely in the follicle.

Eventually, the new anagen hair growing beneath it pushes this club hair out. If you see a white bulb, don’t fear—it’s just proof of a normal cycle. I remind my clients that only hairs without a bulb might indicate breakage.

Why Your Telogen Phase Isn’t a Dead End

Telogen is not permanent. It’s a necessary reset for the follicle. After its rest, the follicle re-enters the anagen phase and begins building a new hair.

Think of the telogen follicle like a factory on a scheduled shutdown. It’s not abandoned; it’s undergoing maintenance before the next production run. The blood supply and cell activity at the base slowly ramp back up.

This is why patience is crucial after a shedding episode. You must support the scalp environment to encourage those resting follicles to “wake up” and restart the cycle on time.

Telogen’s Hidden Link to Hair Thinning Patterns

While telogen effluvium causes diffuse thinning all over, the telogen phase plays a different role in genetic hair loss. In conditions like androgenetic alopecia, the anagen phase shortens over time.

This means hairs spend a progressively larger percentage of their life in telogen, not growing. The result is hairs that are shorter, finer, and shed more easily with each cycle.

In my clinic, I differentiate this by tracking the proportion of telogen hairs in a trichoscopy exam. It’s a key diagnostic clue between temporary shedding and progressive miniaturization.

From My Experience

The biggest mistake I see is people misdiagnosing normal telogen shedding as catastrophic hair loss. They start piling on growth serums and harsh treatments, which can further irritate the scalp.

My proprietary insight is to track your shed. If 90% of the hairs have a white bulb, it’s likely a telogen-driven issue. Focus on internal wellness—iron, protein, stress management—and gentle scalp care.

Never aggressively massage or over-stimulate a scalp in a massive telogen shed. You’re essentially shaking a tree full of ripe fruit. Support the soil (your body and scalp), and the new growth will follow in its own time.

I’ve developed a simple “60-day rule” with clients. If reduced shedding isn’t noticeable 60 days after addressing the suspected trigger, we dig deeper. This timeline aligns with the natural exit from telogen and provides clarity before more invasive testing.

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