The Hair Growth Cycle: Understanding the Stages

Have you ever wondered why your hair grows, then suddenly sheds? You’re not alone. Many people in San Jose notice changes in their hair and feel confused or worried.

The truth is, hair growth follows a natural cycle. Once you understand it, things start to make a lot more sense.

Let’s break it down in a simple way.

What Is the Hair Growth Cycle?

Your hair doesn’t grow all the time. It goes through different stages, like a loop.

Each hair on your head is in its own stage. That’s why you don’t lose all your hair at once.

There are 4 main stages of the hair growth cycle:

• Growth

• Transition

• Rest

• Shedding

Let’s look at each one.

Stage 1: Growth Phase (Anagen)

This is when your hair is actively growing.

Key facts:

• Lasts 2 to 7 years

• Hair grows about half an inch per month

• About 85–90% of your hair is in this stage

The longer this stage lasts, the longer your hair can grow.

Stage 2: Transition Phase (Catagen)

This is a short in-between stage.

What happens here:

• Hair stops growing

• The hair follicle shrinks

• Lasts about 2–3 weeks

Only a small number of hairs are in this stage at a time.

Stage 3: Resting Phase (Telogen)

Now the hair takes a break.

During this stage:

• Hair stays in place but does not grow

• The follicle is resting

• Lasts about 3 months

About 10–15% of your hair is here.

Stage 4: Shedding Phase (Exogen)

This is when the hair falls out.

Important things to know:

• Losing 50–100 hairs a day is normal

• New hair begins to grow after shedding

• This makes room for fresh hair

Shedding may look scary, but it’s part of a healthy cycle.

What Can Disrupt the Hair Cycle?

Sometimes the cycle gets out of balance. This can lead to more shedding or slower growth.

Common causes include:

• Stress

• Poor diet

• Illness

• Hormonal changes

• Scalp problems

When more hairs enter the shedding phase at once, you may notice thinning.

How to Support a Healthy Hair Cycle

Good habits can help keep your hair cycle strong.

Try these simple tips:

• Eat balanced meals with protein and vitamins

• Stay hydrated

• Be gentle when brushing or styling

• Avoid too much heat or harsh chemicals

• Take care of your scalp

Small daily steps can protect your hair over time.

When Should You Be Concerned?

Hair shedding is normal—but sometimes it’s a sign of a deeper issue.

You may want help if:

• You see sudden or heavy hair loss

• Hair is not growing back

• You notice bald spots

• Your scalp feels unhealthy

A professional can check your scalp and explain what’s happening.

Final Thoughts

The hair growth cycle is natural and always happening. Shedding is not the enemy—it’s part of healthy hair renewal. When you understand the stages, you can feel more in control and less worried.

At New Look Institute, we are experts on hair growth and scalp health, using advanced techniques to understand your unique hair cycle. Our team creates personalized plans to support stronger, fuller hair at every stage. If you’re concerned about hair loss or changes in your hair, contact us today to schedule your complimentary consultation and take the first step toward healthier hair.