Top 5 Causes of Hair Loss and the Intricacies of Hair Follicle Life Cycle

Our hair is more than just a mere feature of our appearance; it’s a testament to our health and well-being. However, for those navigating the challenges of Polycystic Ovary Syndrome (PCOS) in Ontario, the struggle with hair loss can be particularly disheartening. In this exploration, we delve into the intricacies of the hair follicle life cycle and the top five causes of hair loss. Understanding these factors is crucial, especially for those seeking a PCOS doctor in Ontario or contemplating PCOS hair loss treatment in the region.

Unraveling the Hair Follicle Life Cycle: A Journey Beneath the Surface

Embarking on the exploration of hair loss entails understanding the complex and fascinating journey of the hair follicle life cycle. Comprising three main phases—Anagen (growth phase), Catagen (transitional phase), and Telogen (resting phase)—the cycle orchestrates the continuous growth, shedding, and regeneration of our hair.

Anagen Phase (growth phase)

The Anagen phase, the foundation of the hair growth cycle, is a period of active cell division and hair shaft production. Within the hair follicles, cells are rapidly multiplying, contributing to the formation of new hair. This phase can last anywhere from two to seven years, depending on genetic factors and overall health.

Catagen Phase (transitional phase)

Following the Anagen phase, the Catagen phase signals a transitional period where the hair follicle undergoes a shutdown. This phase lasts for about two weeks, during which hair stops growing, detaches from the blood supply, and moves towards the surface. While this phase is short-lived, its role in the overall life cycle is pivotal.

Telogen Phase (Resting phase)

The final phase, Telogen, is a resting phase where the hair remains in a state of dormancy for approximately three months. During this period, new hair starts to push the old hair out, initiating a fresh cycle of growth. It’s important to note that at any given time, about 10-15% of our hair is in the Telogen phase.

The Culprits Behind Hair Loss: Unraveling the Mystery

Now, let’s shed light on the factors that disrupt the delicate balance of the hair follicle life cycle, causing hair loss. These insights are particularly pertinent for those seeking PCOS hair loss treatment in Ontario.

1. Hormonal Havoc: The PCOS Connection

For individuals struggling with PCOS in Ontario, hormonal imbalances serve as a prominent trigger for hair loss. Elevated levels of androgens, often associated with PCOS, can lead to an increase in the production of the hormone dihydrotestosterone (DHT). This hormone, in excess, has been linked to the miniaturization of hair follicles, ultimately resulting in hair thinning and loss.

In the search for a PCOS doctor in Ontario, it becomes imperative to address the hormonal imbalances at the root of the issue. Hormone-regulating treatments may be recommended, aiming to restore equilibrium and curb the adverse effects on hair.

2. Nutritional Necessities: The Impact of Deficiencies

In the quest for PCOS hair loss treatment in Ontario, it’s crucial to consider the role of nutrition in maintaining healthy hair. Scarcity in vital nutrients such as iron, zinc, and vitamins D and E can impede the normal functioning of the hair follicles. An inadequate supply of these nutrients may interrupt the hair growth cycle, resulting increased shedding and thinning.

A holistic approach to hair loss involves addressing nutritional gaps through a well-balanced diet or supplementation guided by healthcare professionals. For those consulting a PCOS doctor in Ontario, nutritional assessments may be integral to the treatment plan.

3. Stress-Strain: The Psychosomatic Connection

Stress, often underestimated in its impact on physical health, can significantly contribute to hair loss. The connection amid stress and hair loss lies in the disruption of the normal hair growth cycle. Stress-induced hormonal changes, particularly the release of cortisol, can thrust hair follicles into the Telogen phase prematurely, causing an increase in shedding.

Effective PCOS hair loss treatment in Ontario recognizes the psychosomatic dimensions of this condition. Stress management techniques, including mindfulness practices, supplementation and lifestyle adjustments, can play a pivotal role in mitigating hair loss associated with PCOS.

4. Genetic Predisposition: The Hand We’re Dealt

Genetics wield considerable influence over the thickness, texture, and longevity of our hair. Individuals with a family history of hair loss may be genetically predisposed to conditions such as androgenetic alopecia, usually known as male or female pattern baldness. While genetics isn’t something we can alter, understanding its role can help individuals make informed decisions regarding potential interventions.

5. Hypothyroidism:

The thyroid gland produces hormones that regulate metabolism and play a vital role in hair growth. Hypothyroidism, an underactive thyroid, can disrupt the balance of these hormones, leading to various health issues, including hair loss. When the thyroid is not functioning optimally, hair growth may slow down, and existing hair may become brittle and prone to breakage. PCOS has been linked to an increased incidence of hypothyroidism. Learn more about the thyroid here.

Navigating the Solutions: PCOS Hair Loss Treatment in Ontario

Now that we know about some of the causes of hair loss, let’s learn about some of the treatment approaches for hair loss for PCOS.

  • Hormone Harmonization with Tailored Treatments

Seeking a PCOS doctor in Ontario who supports women with balancing hormones is the first step toward addressing the root cause of hair loss. Identifying your hormone levels via lab work will help to understand the root cause and allow for a personalized treatment plan to be created for you. This could involve herbs to help lower testosterone. This approach aims not only to manage hair loss but also to alleviate other symptoms associated with PCOS.

  • Nutrition with Feeding Follicles from Within

Nutritional interventions play a vital role in restoring hair health for those undergoing PCOS hair loss treatment in Ontario. Customized dietary plans, enriched with essential vitamins and minerals, can help fill nutritional gaps and promote optimal hair growth. Collaborating with a healthcare professional such as a Naturopathic Doctor or a nutritionist ensures a tailored approach aligned with individual needs.

  • Stress Reduction Strategies

Recognizing the impact of stress on hair health, individuals pursuing PCOS hair loss treatment in Ontario may benefit from integrating stress reduction strategies into their daily routines. Mindfulness practices, meditation, supplementation and other relaxation techniques can contribute to a more harmonious hair growth cycle.


In the intricate process of the hair follicle life cycle, understanding the causes of hair loss is the first step towards recovering a healthy mane. For those in Ontario struggling with PCOS, finding a healthcare provider who recognizes the multi-faceted nature of the condition is important.

Dr. Samina Mitha has both personal and clinical experience when it comes to PCOS management. Her commitment to holistic care, addressing the intricate connections between hormones, nutrition, and well-being, makes her a valuable healthcare provider in the journey to healthier and fuller hair.

Video on Hair Loss

Key Points:

  • Top 5 causes of hair loss in women include androgenic alopecia, iron deficiency anemia, stress, genetics and hypothyroidism.  
    • Women with PCOS are at an increased risk of hair loss due to elevated androgens
    • Treatment approaches are individualized to the person as hair loss can be very complex

Next Steps:


Bonakdaran, S., Milani, N., Khorasani, Z. M., Hosseinzadeh, M., & Kabiri, M. (2023). Is There a Relation between Hypothyroidism and Polycystic Ovary Syndrome and its Metabolic Components?. Current diabetes reviews19(2), e260422204034.

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