Thyroid and hair loss-neograft hair clinic

thyroid and hair loss-neograft hair clinic

 Thyroid and hair loss-neograft hair clinic 

Thyroid Disease, Hair Density, and Hair Loss: Understanding the Connection


The thyroid gland is a small, butterfly-shaped organ located in the neck, responsible for controlling metabolism through the release of thyroid hormones. When this small gland underperforms or overperforms, it results in hypothyroidism and hyperthyroidism, respectively. These conditions don’t just influence the metabolic functions of the body; they also have a profound impact on hair density and can lead to hair loss. Understanding the connection between thyroid disease and hair health is vital for those managing these conditions.

Understanding Hypothyroidism and Hyperthyroidism

Hypothyroidism is a condition characterized by an underactive thyroid gland that doesn’t produce enough thyroid hormone. This condition slows down metabolic processes, which can lead to fatigue, weight gain, cold sensitivity, and hair loss, among other symptoms.

On the other hand, hyperthyroidism results from an overactive thyroid gland producing excessive thyroid hormones. This condition speeds up the body’s metabolism, causing symptoms like increased heart rate, excessive sweating, weight loss, nervousness, and, like its counterpart, hair loss.

The Impact on Hair Density and Hair Loss

Thyroid hormones play a significant role in various body functions, including the growth and health of hair. When the levels of these hormones are disrupted, it can interfere with the hair’s growth cycle, leading to hair loss.

Hair follicles follow a specific growth cycle comprising three phases: anagen (growth phase), catagen (transition phase), and telogen (resting or shedding phase). The anagen phase is where your hair grows, and it lasts between two to seven years. After this phase, hair enters the catagen phase, a short transitional period that lasts about ten days. Finally, hair moves into the telogen phase, where it rests for around three months before it falls out and the cycle starts again.

Both hypothyroidism and hyperthyroidism can disrupt this growth cycle. In hypothyroidism, the lowered metabolism and reduced synthesis of proteins can limit the amount of new keratin (the protein that makes up hair) produced, resulting in slower hair growth. Additionally, hypothyroidism can extend the telogen phase, causing hair to remain in the resting stage longer than normal, leading to hair thinning and hair loss.

In hyperthyroidism, the increased metabolic rate can prematurely push hair into the telogen phase, leading to hair loss as more hair follicles go into the resting stage simultaneously. The hair can become thin, brittle, and dry due to the accelerated metabolism, further contributing to hair loss.

Managing Thyroid-Related Hair Loss

The good news is that hair loss due to thyroid disease is typically temporary. Most people will see their hair stop falling out and start to regrow once they get their thyroid hormone levels back to normal. This can be achieved through various treatments depending on whether you have hypothyroidism or hyperthyroidism.

In hypothyroidism, synthetic thyroid hormone medication is often prescribed to replace the deficient hormone levels, thereby normalizing the body’s metabolic processes. In contrast, hyperthyroidism treatments aim to reduce the excessive hormone production. These can include medications, radioactive iodine, or sometimes surgery.

Moreover, a balanced diet rich in essential vitamins and minerals like iron, zinc, and vitamin D can support hair health and growth. It’s also important to minimize stress, as stress can exacerbate hair loss and disrupt hormone balance.


While hair loss and changes in hair density can be distressing symptoms of thyroid disease, understanding the connection between these conditions can provide some reassurance. It’s important to remember that with appropriate management and treatment of thyroid disease, these hair changes are typically reversible. If you

‘re experiencing symptoms of thyroid disease or struggling with hair loss, reach out to a healthcare professional for diagnosis and treatment guidance. Remember, you’re not alone, and there is help available.

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