4a Hair Growth Stages

4a Hair Growth Stages

With its coily and tightly curled pattern, 4A hair is easily recognizable. This hair looks coarse but actually, it is very delicate and soft. When stretched, the tight coils of 4A hair form “S” patterns. 4A hair is usually very thick and looks darker than it actually is. In this post, we are going to discuss the 4A hair growth stages.

4 Stages of Hair Growth

The growth of hair may look simple, but actually, there are 4 distinct phases in the hair growth cycle. To understand the process of hair growth, scientists have deeply studied these stages. If you are looking for ways to deal with hair issues, you may find it helpful to understand these stages.

1. Anagen phase

This is the first phase or growing phase of hair growth. The duration of this phase is long: 3 to 5 years. This length varies from person to person. It also depends on the type of hair. For pubic hairs and eyebrow hairs, the anagen phase is much shorter.

During this phase, hairs come out from hair follicles. The growth continues until the hair strands reach a certain point-basically at the end of the lifespan. Hair strands are usually cut before they reach their full-lengths. The vast majority of your hairs (about 90%) are in this phase.

2. Catagen phase

Also known as the transition phase, this is the second phase of the 4A hair growth stages. During this stage, hair strands begin to fall out. But, behind this seemingly horrible phenomenon, there is an interesting science. Your body sends a signal to your hair, telling it to stop the process of growing. As a response, your follicles shrink slightly and stop receiving blood supply.

The duration of this phase is a few weeks. Your hair “detaches” itself at this stage, but it does not fall out immediately. It falls out only when a new hair comes out and pushes it upward. At any given time, about 5% of your hairs are in this phase.

3. Telogen phase

Once a hair strand has been detached from the scalp, it goes to the next phase, which is known as the telogen phase. This is a resting period, and it can cause anxiety for some people. However, this stage has no straightforward pattern.

The telogen phase can also be accelerated by an unexpected stressor or a body change. This condition is known as telogen effluvium. If you are suffering from telogen effluvium, you might end up losing up to 300 hairs every day. This level is far higher than normal hair loss, which is 100 hair strands per day.

4. Exogen phase

This is the last of the 4A hair growth stages, and the duration of this stage is a few days. With the growth of new hairs, your old hairs detach themselves from the scalp. At this stage, plenty of old hair falls out. When you comb your hair, you may notice large quantities of hair falling out. You may also notice it in the shower drain or when you are styling your hair.

Effects of These Stages on Hair Loss

Hair growth cycles can vary from person to person. If hair follicles get smaller, you may notice male pattern baldness. This condition is often associated with a shorter anagen stage and longer telogen stage. To a great extent, these things are determined by your genetics. Hair loss can not be stopped, but chemical treatments can slow down the process.

Effects Of Genetics, Hormones, and Ageing

We do not have any control over these factors, but they have significant effects on the process of hair growth. Now we are going to discuss these 3 important factors in brief. Genetics has a lot to do with 4A hair growth stages, actually all types of hair growth stages.

If you have issues with your hair, they can be probably traced back to your bloodline. Many large-scale studies have confirmed the roles of genetics on hair growth. However, there is still good news for those who feel unlucky due to their genetics. Clinical studies have proved that botanical ingredients can be helpful for hair growth.

Hormones also influence the growth stages of your hair. Dihydrotestosterone (DHT), for example, hurts hair wellness. DHT can thin your hair and prevent its growth. Thyroid hormones also have a role. Some supplements can interfere with the ways hormones have effects on your hair.

With age, hair changes become prominent. For men, these changes become noticeable when they are over 30 years old. Hair loss is more prevalent among men than among women. Both hormonal changes and genetics play their roles.

There are some specific times when women experience hair changes. They lose hair during the postpartum period and when they approach menopause. A receding hairline may be noticeable when a woman has an elevated level of testosterone.

Does Hair Fall Treatment Affect 4a Hair Growth Stages?

To stop hair loss, there are only 2 FDA-approved treatments: minoxidil and finasteride. Before you know how these treatments work, it is good to know a little bit about DHT. This male sex hormone helps your body grow hair and muscles. If you are experiencing male pattern baldness, it is happening probably because DHT is going haywire.

Minoxidil increases your anagen follicles and decreases the length of the telogen phase. As a result, your hair grows more often. To make the long story short, chemical treatments can affect your hair growth, at least to some extent.

Ways to Take Care of 4a Hair

4A hair is like tight coils, and they are susceptible to dryness. If 4A hair is properly taken care of, the final results can be satisfactory. Here are some tips for maintaining healthy and natural 4A hair.


4A hair is prone to damage partly due to its dry texture. Keeping your hair moisturized is the key. So, to take care of your 4A hair, make sure you choose a hydrating shampoo. Use your finger to delicately detangle your hair before shampooing.

Detangle each tug at a time. Make sure the curls do not get matted. Apply shampoo only on the roots and the scalp. Then, gently rinse your hair.


After shampooing, it is important to condition your 4A hair. Your hair needs moisture, and conditioners replenish it. Be careful when choosing a conditioner. There are many brands on the market. Make sure you do not end up choosing the cheapest brand.

Daily moisture

Make sure you moisturize your 4A hair every day, or at least 3 days a week. If your hair is really dry, feel free to use oil. Coconut oil can add adequate moisture. Unlike most oils, coconut oil can penetrate the hair shafts. To make your curls frizz-free, apply very little coconut oil in each session.

Pre-sleep care

Sleep on a silk pillowcase to avoid breakage and frizz. Cotton produces friction, which silk and satin do not. They are also good for preventing bedtime wrinkles. Be as stress-free as possible when you go to bed. Stress can wreak havoc on your hair.

You could also read about what 4a hair is.

4a Hair Growth Stages – Final thoughts

We have discussed 4A hair growth stages and provided some tips on hair care. Actually, there are stages for all hair types. Understanding these stages can help take care of your hair. This knowledge also helps you stop worrying unnecessarily when you notice normal hair fall. 


About the Author Natasha Banks