In-Depth Look: Hormones Responsible for Hair Loss

WrittenbyDr. Edna Skopljak, M.D.
Last updated

Understanding the connection between hormones and hair loss is essential for anyone seeking insights into this common concern. If you're curious about the hormones that play a significant role in hair loss, you're in the right place. In this article, we'll delve into the hormones that can contribute to hair loss and provide you with a comprehensive understanding of this complex issue.

Table of content
1. What Hormones Cause Hair Loss?
2. Conclusion

What Hormones Cause Hair Loss?

Several hormones can contribute to hair loss, each affecting hair follicles in distinct ways:

1. Dihydrotestosterone (DHT)

Dihydrotestosterone (DHT) is a derivative of the male sex hormone testosterone. Elevated levels of DHT can lead to hair follicle miniaturization, where hair follicles become smaller and produce thinner hair strands. This process eventually leads to hair thinning and, in some cases, hair loss.

2. Cortisol

Cortisol, often referred to as the stress hormone, can impact hair health when consistently elevated. Chronic stress and high cortisol levels can lead to telogen effluvium, a condition where hair follicles prematurely enter the resting phase and result in increased hair shedding.

3. Thyroid Hormones

Imbalances in thyroid hormones, including hypothyroidism (low thyroid hormone levels) and hyperthyroidism (excess thyroid hormone levels), can influence hair growth cycles. Hypothyroidism is often associated with hair thinning and brittle hair, while hyperthyroidism can lead to increased shedding.

4. Sex Hormones

Changes in sex hormones such as estrogen and progesterone can impact hair growth patterns. Postpartum hair loss is an example of hormonal fluctuations affecting hair density in women.

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Conclusion

Hormones indeed play a pivotal role in hair loss, with DHT, cortisol, thyroid hormones, and sex hormones being major contributors. Understanding these interactions can provide valuable insights into the underlying causes of hair loss and help individuals make informed decisions about potential treatments and lifestyle adjustments. Consulting with healthcare professionals is recommended for those seeking personalized guidance.

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Dr. Edna Skopljak, M.D.

About the Writer

Edna Skopljak, MD — University of Ljubljana, Faculty of Medicine

Edna Skopljak, MD is a clinical doctor at the University Medical Center Ljubljana and a PhD candidate in Biomedicine at the University of Ljubljana. She combines clinical work with research and medical editing, bringing a clear, evidence-based lens to patient education. Previously, she held roles in the pharmaceutical sector (product management and chief medical officer) and served as a medical production editor for the journal Biomolecules and Biomedicine.

Dr. Skopljak’s publications span clinical topics, including urology and orthopedics. She has co-authored work affiliated with the Department of Orthopedic Surgery at University Medical Centre Ljubljana. She trained in medicine with early clinical experience in Slovenia, reflecting a long-standing focus on practical, patient-facing care.

She strictly follows our Editorial Standards: All medical statements are grounded in authoritative guidelines, FDA labels, and peer-reviewed studies, with clear distinction between approved treatments and adjunctive options.