Caleb Foster
Rough nails are a common issue, often caused by repeated wetting and drying of the fingernails. This condition, known as onychoschizia, results in brittle nails that may also crack or split easily. While it is usually not a cause for concern, in some cases, it could indicate an underlying issue such as hypothyroidism or iron deficiency. Additionally, external factors like long-term exposure to moisture or nail polish can contribute to nail brittleness. Recognizing these potential causes can help address any concerns and improve nail health.
| Characteristics | Values |
|---|---|
| Roughness | Repeated wetting and drying of the fingernails |
| Hypothyroidism | |
| Iron deficiency | |
| Aging | |
| Long-term exposure to moisture | |
| Nail polish | |
| Skin cancer | |
| Injury | |
| Arsenic poisoning | |
| Silver intake | |
| Antibiotics | |
| Chemotherapy medicines |
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What You'll Learn
Repeated wetting and drying
The nail plate is made up of hard, compacted layers of keratin, a protein that is also found in hair and skin. These layers are held together by strong chemical bonds that give the nail plate its structure and strength. However, when the nail is repeatedly exposed to moisture, the water can penetrate these layers and weaken the bonds between them.
As the nail absorbs water and swells, it can also lift and separate from the nail bed, the skin underneath the nail plate. This can further weaken the nail and make it more susceptible to damage and roughness. The nail plate is also covered in a thin, protective layer of oil, which can be washed away with frequent wetting, leaving the nail vulnerable to moisture loss and damage.
To prevent roughness and promote healthy nails, it is important to maintain proper nail hydration and avoid excessive wetting and drying. This includes wearing gloves when doing dishes or other household chores that involve water, and limiting exposure to harsh chemicals and soaps, which can strip away the natural oils that protect the nails.
Additionally, using a moisturising hand and nail cream can help to lock in moisture and protect the nails from the environment. Nail hardeners and strengtheners can also be used to fortify the nail plate and prevent roughness and breakage caused by repeated wetting and drying. By taking these steps to maintain nail health, you can help to keep your nails smooth and strong.
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Iron deficiency
Spoon nails are typically associated with iron deficiency anemia, and the condition is believed to be linked to reduced iron levels in epithelial cells. These cells cover the inside and outside skin surfaces of the body, including the nail bed epithelium, which lies between the nail bed and the nail plate. Poor blood flow under the nail plate due to low iron levels may also contribute to the formation of spoon nails.
People with certain dietary habits or medical conditions may be more prone to developing spoon nails. For example, those following a vegetarian or vegan diet, or individuals with celiac disease, cancer, or intestinal bleeding may be at a higher risk. Additionally, living at high altitudes and having poor blood flow to the hands and feet can increase the likelihood of spoon nails.
If you suspect you have iron deficiency anemia, it is important to consult a healthcare professional. Treatment options may include dietary changes, iron supplements, or specific medical treatments.
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Horizontal ridges
Beau's lines can occur after an illness, injury to the nail, eczema around the nail, chemotherapy for cancer, or poor nutrition. They can also be a sign of kidney disease. If you notice horizontal ridges on your nails, it is important to monitor for other symptoms and, if concerned, consult a healthcare professional.
In addition to the aforementioned causes, horizontal ridges can also be indicative of more serious conditions. For example, subungual melanoma, a potentially deadly form of skin cancer, can cause dark streaks down the length of the nail, known as Hutchinson's sign. Arsenic poisoning may also result in white lines and horizontal ridges on the nails.
While nail abnormalities can provide valuable insights into your health, it is important to remember that they are rarely the first sign of a serious condition. If you are concerned about the appearance of your nails, it is always recommended to consult a doctor or dermatologist for proper evaluation and diagnosis.
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Yellow nail syndrome
Respiratory symptoms associated with YNS include fluid buildup in the lung tissue (pleural effusions), chronic cough, recurrent sinus infections (sinusitis), and pneumonia. In some cases, individuals with YNS may also experience additional respiratory problems such as chronic infection, inflammation of the bronchial tubes (bronchitis), bronchiectasis, and emphysema.
The exact cause of YNS remains unknown, and the syndrome is often misdiagnosed as other conditions, such as onychomycosis, a fungal infection. However, histopathological analysis of nail samples in YNS is typically negative for fungus. Some experts believe that YNS may be linked to issues with the circulatory or lymphatic system, improper circulation, or problems with lymphatic drainage. There is also speculation that YNS could be genetic, with some cases running in families and potential links to changes in the FOXC2 gene, which is associated with lymphedema-distichiasis syndrome, a condition with similar symptoms to YNS. Additionally, exposure to titanium through joint replacements, dental implants, or certain medications has been suggested as a possible contributing factor.
Diagnosing YNS requires a comprehensive evaluation, including a detailed history and examination of the pulmonary, vascular, and integumentary systems. It is important to rule out other common causes of yellow nails, such as onychomycosis, through histopathological examination of nail samples. Early identification of the triad of symptoms—nail abnormalities, lymphedema, and pulmonary disease—is crucial for effective management of the syndrome. While there is no specific treatment for YNS, interprofessional collaboration between dermatologists, pulmonologists, and other specialists is essential to enhance patient outcomes and reduce associated morbidity.
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Koilonychia
Iron deficiency is the most common cause of koilonychia. It can be due to insufficient iron intake, impaired iron absorption, or conditions such as celiac disease, cancer, intestinal bleeding, or excessive menstruation. Treating iron deficiency can help resolve koilonychia, and dietary changes or supplements may be recommended.
In some cases, koilonychia may be associated with other medical conditions. It can be a manifestation of inflammatory skin diseases such as lichen planus or psoriasis, or it may be linked to endocrine disorders like hypothyroidism or hyperthyroidism, diabetes mellitus, Plummer-Vinson syndrome, alopecia areata, onychomycosis, or Raynaud's phenomenon. Additionally, exposure to certain products, such as petroleum, and living at high altitudes have been linked to an increased risk of koilonychia.
While koilonychia itself may not be a significant concern, it can indicate underlying health issues that require medical attention. Therefore, anyone noticing changes in their nail shape or texture should consult a healthcare professional for proper diagnosis and treatment.
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Frequently asked questions
Rough nails, also known as onychoschizia, are usually caused by repeated wetting and drying of the fingernails. In some cases, it may be a sign of hypothyroidism or iron deficiency.
If your nails are rough due to repeated wetting and drying, you can try wearing rubber gloves when your hands are in water or when using cleaning products.
In addition to hypothyroidism and iron deficiency, rough nails can also be caused by aging, especially if your nails are also brittle.
