15.7 C
New York
May 29, 2023
Hair & Skin

Hair Phases or Hair Growth Cycle: Anagen, Catagen, Telogen.

hair growth cycle

Understanding the different phases of the hair growth cycle is essential for comprehending the natural process of hair growth and shedding. In this article, we have translated, improved, and elaborated upon the content from the original source to provide you with a comprehensive understanding of the phases of the hair growth cycle.

  • Anagen Phase (Growth Phase):

The anagen phase is the active growth phase of the hair follicle. During this phase, cells in the hair bulb divide rapidly, and hair grows approximately half an inch per month. The duration of the anagen phase varies from person to person, typically lasting between two to seven years. Hair that is in the anagen phase is strong, healthy, and firmly anchored to the scalp.

  • Catagen Phase (Transition Phase):

The catagen phase is a brief transitional phase that signals the end of the active growth of the hair follicle. This phase lasts for about two to three weeks. During the catagen phase, the hair follicle shrinks, and the lower part of the hair detaches from the blood supply. The hair becomes club hair, which is a fully formed hair that is no longer growing.

  • Telogen Phase (Resting Phase):

The telogen phase is the resting phase of the hair growth cycle. Approximately 10-15% of the hair on the scalp is in this phase at any given time. The telogen phase typically lasts for about three to four months. During this phase, the hair follicle is inactive, and the club hair remains in place until it is pushed out by the growth of a new hair in the anagen phase.

  • Exogen Phase (Shedding Phase):

The exogen phase is the final phase of the hair growth cycle, also known as the shedding phase. It occurs concurrently with the early part of the anagen phase. During this phase, the club hair is shed and replaced by a new growing hair. Shedding of approximately 50-100 hairs per day is considered normal. However, certain factors such as hormonal changes, nutritional deficiencies, or stress can disrupt the balance, leading to excessive hair shedding.

Understanding Hair Loss in Relation to the Hair Growth Cycle:

Hair loss can occur when there is an imbalance in the hair growth cycle. Various factors can disrupt this delicate balance, leading to excessive shedding or thinning of hair. Some common causes of hair loss include hormonal imbalances, nutritional deficiencies, certain medical conditions, medications, and excessive physical or emotional stress. It’s important to identify the underlying cause to determine the appropriate treatment or preventive measures.

Maintaining a Healthy Hair Growth Cycle:

While the duration of each phase of the hair growth cycle is primarily determined by genetics, certain lifestyle factors can influence the overall health of your hair. Here are some tips to maintain a healthy hair growth cycle:

  • Practice a Balanced Diet:

A well-balanced diet rich in vitamins, minerals, and proteins is essential for promoting healthy hair growth. Include foods like fruits, vegetables, whole grains, lean meats, fish, nuts, and seeds to provide your body with the necessary nutrients.

  • Avoid Excessive Styling or Heat:

Excessive use of styling tools, chemical treatments, and heat can damage the hair and disrupt the hair growth cycle. Limit the use of these treatments and protect your hair from heat by using heat protectant sprays.

  • Manage Stress:

Chronic stress can disrupt the hair growth cycle, leading to excessive shedding. Incorporate stress-management techniques such as exercise, meditation, and relaxation techniques into your daily routine.

  • Protect Your Hair:

Protect your hair from harsh environmental conditions, such as sun exposure and chlorine from swimming pools. Use sunscreen for your scalp and wear a hat or scarf when exposed to direct sunlight. Rinse your hair thoroughly after swimming in chlorinated water to remove any residual chemicals that can damage the hair.

  • Practice Gentle Hair Care:

Handle your hair gently to minimize breakage and damage. Use a wide-toothed comb or a brush with soft bristles to detangle your hair. Avoid pulling or tugging on knots, as this can lead to hair breakage. When drying your hair, gently pat it with a towel or allow it to air dry partially before using a blow dryer on a low heat setting.

  • Avoid Tight Hairstyles:

Avoid hairstyles that put excessive tension on your hair, such as tight ponytails, braids, or buns. The constant pulling and tension can weaken the hair follicles and lead to hair loss over time. Opt for looser hairstyles or styles that distribute the tension evenly across your scalp.

  • Seek Professional Advice:

If you’re experiencing significant hair loss or have concerns about your hair growth cycle, it’s advisable to consult a healthcare professional or a dermatologist specializing in hair disorders. They can evaluate your specific condition, conduct any necessary tests, and provide personalized recommendations or treatments to address the underlying causes of your hair loss.


Understanding the phases of the hair growth cycle is crucial for implementing effective strategies to prevent hair loss and promote healthy hair growth. By maintaining a balanced diet, practicing gentle hair care, protecting your hair from environmental damage, managing stress, and seeking professional advice when needed, you can optimize the health of your hair and minimize the risk of hair loss. Remember that individual hair growth cycles may vary, and results may take time, so patience and consistency are key. Embrace a holistic approach to hair care and make choices that support the overall well-being of your hair and scalp.

Related posts

Hair Loss Due To Cancer And Chemotherapy: Symptoms And Care


Is Vlamorous Anti Aging Cream 30-Day Free Trial Offer Scam?


False myths about hair loss: At what age does it fall out? does it grow back? and other myths


Leave a Comment