Is Low Testosterone Causing Hair Loss?

Is Low Testosterone Causing Hair Loss?

Hair loss is a common concern that affects people of various ages and genders. While genetic factors, lifestyle choices, and hormonal fluctuations play a significant role in hair health, one hormone often associated with hair loss is testosterone. Testosterone is a crucial hormone in the male body, responsible for the development of male characteristics and the maintenance of various bodily functions. In this blog post, we will explore the intricate relationship between low testosterone levels and hair loss, examining the scientific evidence and shedding light on the complexities of this connection.

Understanding Testosterone and Its Functions

Testosterone is a sex hormone primarily produced in the testicles of men and smaller quantities in the ovaries of women. Though it’s often referred to as the male sex hormone, both men and women have testosterone, albeit in different amounts. In men, testosterone plays a vital role in the development of masculine features such as facial hair, deep voice, and muscle mass. It also contributes to libido, bone density, and overall well-being.

Testosterone’s Impact on Hair Growth

Hair growth is a complex process influenced by various factors, including genetics, hormones, and environmental factors. Testosterone itself is not directly responsible for hair growth, but its derivative, dihydrotestosterone (DHT), is thought to play a significant role in hair loss.

When testosterone is converted into DHT by the enzyme 5-alpha reductase, it can bind to hair follicles’ receptors and lead to a gradual shrinking of the follicles. This process, known as miniaturization, can result in thinner, weaker hair and eventually lead to hair loss. While this mechanism is more commonly associated with male pattern baldness, it can also affect women, albeit to a lesser extent.

The Role of Genetics in Testosterone-Related Hair Loss

Genetics is a crucial factor in understanding the link between testosterone and hair loss. Androgenetic alopecia, commonly known as male pattern baldness or female pattern hair loss, is a hereditary condition that accounts for the majority of hair loss cases. In individuals with a genetic predisposition, the hair follicles become more sensitive to the effects of DHT, making them more susceptible to miniaturization and eventual hair loss.

Low Testosterone and Hair Loss: The Scientific Perspective

While the association between high levels of DHT and hair loss is well-established, the link between low testosterone and hair loss is less clear. Testosterone deficiency, or low testosterone levels, is a condition that can occur due to various factors, including aging, certain medical conditions, and lifestyle choices.

Several studies have explored the relationship between low testosterone levels and hair loss, with some suggesting a potential correlation. However, the findings are not conclusive, and more research is needed to establish a definitive link between low testosterone and hair loss.

One study published in the Journal of Clinical Endocrinology and Metabolism examined the effects of testosterone supplementation on hair growth in men with low testosterone levels. The results suggested that testosterone replacement therapy led to an increase in hair growth and thickness. While this indicates a potential positive impact of testosterone on hair health, the study was limited in scope, and more extensive research is needed to confirm these findings.

Another study published in the European Journal of Endocrinology investigated the relationship between androgen levels (including testosterone) and hair loss in women. The study found a correlation between androgen levels and hair loss in women, suggesting that hormonal imbalances may contribute to hair thinning. However, the study did not specifically focus on low testosterone levels.

Hormonal Balance and Hair Health

Hormonal Balance and Hair Health

While testosterone and DHT are associated with hair loss, it’s essential to recognize that hormonal balance is crucial for overall health, including hair health. Hormones work in harmony within the body, and an imbalance can have cascading effects on various physiological processes.

In addition to testosterone, other hormones, such as estrogen and progesterone in women, also play a role in hair health. An imbalance in these hormones can contribute to conditions like polycystic ovary syndrome (PCOS), which is known to cause hair thinning and loss in women.

Furthermore, thyroid hormones, cortisol (the stress hormone), and insulin levels can influence hair growth. Conditions such as hypothyroidism or hyperthyroidism, chronic stress, and insulin resistance can contribute to hair loss.

Addressing Hair Loss: Beyond Testosterone

While testosterone and DHT may contribute to hair loss, addressing this issue requires a comprehensive approach that considers various factors. Here are some strategies that individuals experiencing hair loss can explore:

  1. Consulting with a Healthcare Professional:

Before initiating any treatments, it’s crucial to consult with a healthcare professional, preferably a dermatologist or endocrinologist, to determine the underlying cause of hair loss. They can conduct thorough assessments, including blood tests, to identify hormonal imbalances, nutritional deficiencies, or other contributing factors.

  1. Lifestyle Modifications:

Adopting a healthy lifestyle can positively impact hair health. This includes maintaining a 

a balanced diet rich in essential nutrients, staying hydrated, managing stress through relaxation techniques or exercise, and getting adequate sleep.

  1. Medications and Topical Treatments:

Several medications and topical treatments are available to address hair loss. Minoxidil and finasteride are commonly used medications that can promote hair regrowth and prevent further loss. However, these should be used under the guidance of a healthcare professional.

  1. Hormone Replacement Therapy:

In cases where hormonal imbalances, including low testosterone, are identified, hormone replacement therapy may be considered. However, this approach should be carefully monitored, as it comes with potential side effects and risks.

  1. Platelet-Rich Plasma (PRP) Therapy:

PRP therapy involves extracting a small amount of the patient’s blood, processing it to concentrate platelets, and then injecting it into the scalp. This treatment has shown promise in promoting hair regrowth by stimulating the hair follicles.


While the connection between low testosterone and hair loss remains an area of ongoing research, it’s essential to approach this topic with a nuanced perspective. Hair loss is a multifaceted issue influenced by a combination of genetic, hormonal, and environmental factors.

The link between low testosterone and hair loss is not as straightforward as the association between high DHT levels and male pattern baldness. Research suggests that testosterone replacement therapy may have a positive impact on hair growth in men with low testosterone levels, but more studies are needed to confirm these findings.

Individuals experiencing hair loss should seek professional guidance to determine the underlying cause and explore appropriate treatment options. A holistic approach that considers lifestyle modifications, nutritional support, and targeted therapies may be more effective in addressing hair loss than focusing solely on testosterone levels.

In conclusion, the journey to understanding and managing hair loss involves unraveling the complexities of hormonal balance, genetic predispositions, and overall health. As science continues to advance, a more comprehensive understanding of the interplay between testosterone and hair health will likely emerge, offering new insights and innovative solutions for those seeking to maintain or regain their hair.

If you enjoyed this article, you may also want to read this article Do Headbands Cause Receding Hairlines?

*This information is not intended to serve as a substitute for professional medical or dietary advice tailored to individual needs.


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Dr. Kimberly Langdon

Kimberly Langdon

Dr. Kimberly Langdon has been an MD for 31 years, board-certified obstetrician/gynecologist with 19-years of clinical experience. She graduated from The Ohio State University College of Medicine, earning Honors in many rotations. She then completed her OB/GYN residency program at The Ohio State University Medical Center, earning first-place accolades for her Senior Research Project and Score of 98th percentile on a National Proficiency Test.

During her clinical career, she delivered over 2000 babies and specialized in minimally invasive procedures, menopause, endometriosis, menstrual disorders, and polycystic ovarian syndrome. After retiring from clinical practice, she founded a medical device company to commercialize her two patented and four patent-pending medical devices for both life-threatening and non-life-threatening infections.

Kimberly Langdon M.D.

Founder and Chief Scientific Officer, Coologics, 2010-present
The Ohio State University College of Medicine, Doctor of Medicine 1987-1991
The Ohio State University Hospital Department of Obstetrics and Gynecology Residency Program 1991-1995
Private practice 1995-2010

Po-Chang Hsu

Po-Chang Hsu

Po-Chang Hsu, M.D., received his medical doctorate from Tufts University School of Medicine in Boston. During his medical school training, Dr. Hsu worked with various patients, including adult and pediatric patients with acute and chronic conditions. Dr. Hsu’s interests include neurology, psychiatry, pediatrics, and sleep medicine.

Before medical school, Dr. Hsu finished a master’s degree at Harvard University and wrote a thesis on neuroimaging in schizophrenia patients at Brigham and Women’s Hospital, a Harvard Medical School-affiliated hospital. Dr. Hsu was also a part of the 2008 NASA Phoenix Lander Mission team, which sent a robotic spacecraft to the North polar region of Mars. Dr. Hsu also had research experience on neuroimaging in neonates at Boston Children’s Hospital, another Harvard Medical School-affiliated Hospital.

Since graduating from medical school, Dr. Hsu has worked as a full-time medical writer and consultant. In addition, he has experience writing and ghostwriting books and articles for physicians and health technology start-up companies. Dr. Hsu believes good communication between healthcare providers and patients creates the best results.


-Peer Reviewed Journal Article:
Kounaves, S.P., Hecht, M.H., West, S.J., Morookian, J.-M., Young, S.M.M., Quinn, R., Grunthaner, P., Wen, X., Weilert, M., Cable, C.A., Fisher, A., Gospodinova, K., Kapit, J., Stroble, S., Hsu, P.-C., Clark, B.C., Ming, D.W. and Smith, P.H. The MECA wet chemistry laboratory on the 2007 phoenix mars scout Lander. Journal of Geophysical Research. 2009, Mar; 114(E3): 10.1029/2008je003084.

-Poster Presentation:
2011 Harvard Psychiatry Mysell Poster Session; Boston, MA
Hsu, P.C., Rathi, Y., Eckbo, R., Nestor, P., Niznikiewicz, M., Thompson, E., Kubicki, M., Shenton, M.E. (March, 2011). Two-Tensor Diffusion Tensor Imaging of Acoustic Radiations in Schizophrenia

Dr. Nicolette Natale

Nicolette Natale

Dr. Nicolette Natale is a physician, with a background in Psychology, General Medicine, and English Literature, combining her expertise to provide readers with the most accurate, easy-to-understand, and comprehensive information regarding healthcare. She received her Doctorate in Osteopathic Medicine from Nova Southeastern University, and her bachelor’s in English Literature and Psychology from the University of Miami. Dr. Natale seeks to empower individuals with knowledge, fostering a greater understanding of holistic health and encouraging a proactive approach to well-being