Caleb Foster
Changes in the colour, texture, or shape of your nails can indicate a variety of health issues, from nutritional deficiencies to more serious illnesses. Dry fingernails, for example, can become brittle and may indicate a lack of moisture or an underlying health condition. While nail abnormalities are common and often harmless, it is important to be aware of potential causes and when to seek medical advice.
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What You'll Learn
Dry fingernails can indicate an iron deficiency or anaemia
Dry fingernails can be caused by repeated wetting and drying, overexposure to moisture or chemicals, or a lack of moisture. However, in some cases, dry and brittle fingernails can also indicate an underlying health issue, such as hypothyroidism or iron deficiency.
Iron deficiency, also known as anaemia, occurs when the body does not have enough iron to produce red blood cells, leading to reduced oxygen supply to the tissues and organs. This can cause various symptoms, including fatigue, weakness, and pale skin. Iron deficiency can also lead to nail abnormalities, with one of the most common being spoon nails (koilonychia). Spoon nails are characterised by a concave shape, appearing sunken in the centre, and can be thin and brittle. In severe cases of iron deficiency, nail beds may appear pale or white due to reduced blood flow and oxygenation.
If you suspect that your dry fingernails may be due to iron deficiency, it is important to seek medical advice and get a proper diagnosis. Blood tests can be performed to measure iron levels and other markers, such as ferritin and transferrin saturation, which can indicate iron deficiency. Treatment for iron deficiency typically involves iron supplementation and dietary changes to include iron-rich foods.
While nail issues can sometimes indicate underlying health issues, it is important to remember that nail abnormalities are often harmless and are usually not the first sign of a serious condition. Changes in nail shape, thickness, or colour can be caused by injury, overexposure to moisture or chemicals, or simply the result of ageing. Proper nail care, such as wearing gloves during water-heavy tasks and avoiding harsh chemicals, can help prevent nail damage and improve nail health.
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Dry nails can be caused by overexposure to moisture
To prevent and address dry nails caused by moisture overexposure, several measures can be taken. Firstly, it is advisable to wear gloves when performing water-heavy tasks or cleaning to minimize direct contact with water and protect the nails. Using a mild liquid soap and thoroughly drying the hands after washing can also help. Avoiding prolonged contact with nail products and chemicals is essential, as they can irritate the skin and nails. This includes nail hardeners, adhesives, treatments, polishes, primers, and UV gels. When using such products, it is crucial to follow manufacturer guidelines and store them properly to prevent accidental exposure.
Furthermore, maintaining proper nail care routines can help strengthen dry nails. This includes moisturizing the nails and hands with lotions or creams, especially after activities that may dry them out. Applying a clear coat of nail polish can also increase nail strength over time. In addition, dietary changes, such as increasing protein intake and taking biotin vitamin supplements, can contribute to nail health.
While dry nails can be a cosmetic concern, they may also indicate underlying health issues in rare cases. For instance, persistent dryness and nail brittleness could be a sign of hypothyroidism, iron deficiency, or anemia. If home remedies and proper nail care do not improve the condition of dry nails, it is recommended to consult a doctor or dermatologist for further evaluation and treatment.
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Dry nails can be a sign of hypothyroidism
When the thyroid is underactive, as in the case of hypothyroidism, it can lead to a variety of symptoms, and changes in the nails are one of the most noticeable indicators. Nails affected by hypothyroidism tend to become weak, brittle, and prone to breakage. They may also grow more slowly and appear thin or ridged. These changes can be unsightly and may cause concern for those affected.
The good news is that treating hypothyroidism can help improve nail health. Thyroid replacement medications, such as levothyroxine or Armour Thyroid, are commonly used to normalize thyroid hormone levels. With consistent treatment, individuals with hypothyroidism can expect an improvement in their nail health over time, as their thyroid function returns to normal.
It is important to note that nail changes are rarely the first sign of an underlying condition. However, if you notice persistent dryness or brittleness in your nails, it may be worth consulting a dermatologist or a healthcare professional. They can assess your symptoms, recommend appropriate treatments, and determine if further investigation is required.
In summary, dry nails can be one of the early warning signs of hypothyroidism. By recognizing this connection and seeking appropriate medical advice, individuals can take proactive steps to manage their thyroid health and improve the appearance and strength of their nails.
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Dry nails can be caused by frequent manicures
Dry fingernails can indicate various health issues, including nutritional deficiencies or underlying conditions such as hypothyroidism, iron deficiency, or kidney disease. However, it's important to note that nail changes are rarely the first sign of a serious condition and many abnormalities are harmless.
One potential cause of dry fingernails is frequent manicures, especially those involving the use of gel nail polish. While manicures can make your nails look neat and beautiful, they can also have negative effects, including nail brittleness, peeling, and cracking. This is true for both traditional manicures and gel manicures.
Traditional manicures often involve soaking the nails in water, which can cause them to soften, bloat, and expand. As the nails dry and return to their normal size in the days and weeks after the manicure, the polish is more likely to chip and peel prematurely. This process can compromise the adhesion of the polish to the nail. Additionally, when the cuticles absorb water, they can become plumped, making it harder to notice and remove dry skin during the manicure. As a result, the cuticles may continue to peel in the days following the manicure.
Gel manicures, in particular, have been associated with nail brittleness, peeling, and cracking. The use of ultraviolet radiation to seal the gel nail polish can increase the risk of skin cancer and premature skin aging on the hands. Repeated exposure to these manicures can further enhance these risks. To minimize the potential harm, it is recommended to reserve gel manicures for special occasions and to prioritize nail care in between treatments.
To maintain nail health, it is important to take proactive measures. This includes being vigilant about the sterilization and disinfection of tools by manicurists and considering the use of gloves during the process to reduce the risk of bacterial or fungal infections. Additionally, allowing nails to recover by taking breaks between manicures, moisturizing nails and cuticles, and wearing gloves during water-heavy tasks can help prevent and address dryness and brittleness.
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Dry nails can be caused by an underlying disease
However, there are some diseases and conditions that can cause dry nails. For example, if your nails are brittle, this could indicate an iron deficiency or, less commonly, anaemia. If your nails are spoon-shaped and also dry, this could be a sign of iron-deficiency anaemia. Horizontal ridges on the nail, also known as Beau's lines, may be a sign of kidney disease or another underlying condition. Black lines on the nail, which can appear brown or dark red, could be a sign of psoriasis, endocarditis, or nail melanoma. Small dents or pits in your nails can be a sign of nail psoriasis, eczema, or alopecia.
Nail fungal infections are a common condition that can cause nails to become thick, discoloured, and brittle. Many diseases can affect the nails, and treatments typically involve preventing further nail damage and treating the underlying condition. If you are concerned about the appearance of your nails, you should see your doctor or a dermatologist.
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Frequently asked questions
Dry fingernails can indicate an iron deficiency or anemia.
Repeated wetting and drying of the fingernails can cause them to become dry.
If your dry fingernails are also brittle, this could be a sign of hypothyroidism or iron deficiency.
Changes in the colour or texture of your nails may indicate an underlying health issue. For example, horizontal ridges on your nails, also called Beau's lines, may indicate kidney disease or another underlying condition.
If you notice concerning changes in your fingernails, it is recommended that you consult a board-certified dermatologist.
