What Cause Hair Loss Brittle Nails and Dry Skin in Women: Understanding the Connection

WrittenbyLuat Duong
Last updated

A myriad of factors can contribute to hair loss, brittle nails, and dry skin in women. Aging, nutritional deficiencies, hormonal changes, certain diseases, and lifestyle choices are among the most common causes. This article aims to provide comprehensive insights into these issues, their causes, and how to tackle them effectively.

What Causes Hair Loss, Brittle Nails, and Dry Skin in Women?

Several factors can lead to hair loss, brittle nails, and dry skin in women. Hormonal fluctuations, particularly during menopause, can lead to these conditions, with thyroid issues also commonly contributing. Vitamin deficiencies, particularly of biotin (vitamin B7), which is vital for converting food into energy, can cause brittle hair and nails. External factors such as excessive hair washing, styling, and blow-drying can also contribute to these issues. Furthermore, aging tends to weaken hair and nails, while also leading to drier skin.

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Link Between Thyroid Issues and Hair Loss, Brittle Nails, and Dry Skin

Hypothyroidism, or an underactive thyroid, occurs when the thyroid gland produces too few hormones. This can cause a wide range of symptoms, including changes in mental functioning, digestive issues, hair loss, brittle nails, and dry skin. In the early stages, these symptoms may not be noticeable, but without treatment, hypothyroidism can lead to severe complications such as infertility and heart disease.

Nutritional Deficiencies and Its Impact

The lack of certain nutrients in the diet can manifest as brittle hair, nails, and dry skin. Biotin deficiency, though rare, can cause brittle, thinning hair and nails. A balanced and nutritious diet is crucial for maintaining the health of your hair, skin, and nails.

Role of Aging in Hair Loss, Brittle Nails, and Dry Skin

As we age, hair and nails tend to weaken, and the skin becomes drier. This is a natural part of the aging process. For example, the oil and sweat glands grow less active as we age, making it harder to keep the skin moisturized. The nails may also become thin and prone to splitting.


Hair loss, brittle nails, and dry skin in women can be caused by a variety of factors including hormonal changes, vitamin deficiencies, aging, and certain diseases. If you're experiencing these symptoms, it's important to seek medical advice to determine the underlying cause and get appropriate treatment. Simple lifestyle changes such as eating a balanced diet, maintaining proper hydration, and protecting your skin, hair, and nails from harsh conditions can also make a significant difference.

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Luat Duong

Luat Duong is a Copenhagen-based writer and content strategist specializing in hair loss and health. His work has been featured in MyHealthGuide, The Right Hairstyles, and Woman's Era. He is a graduate of Vaasa University. You can connect with him on LinkedIn.