
Flaking and cracked fingernails can be frustrating and even embarrassing. They can be caused by various factors, including vitamin deficiencies, frequent exposure to water, and underlying skin conditions such as eczema. In some cases, cracks may indicate a fungal infection or a more systemic condition. While most cracked fingernails don't require medical treatment, persistent or worsening cracks may warrant a visit to the doctor, who can prescribe antifungal medication or treat any underlying causes.
| Characteristics | Values |
|---|---|
| Causes | Ageing, exposure to water, vitamin or nutrient deficiency, skin conditions like eczema, anemia, psoriasis, fungal infections, cancer treatment, exposure to harsh chemicals, manicures, and physical trauma |
| Prevention | Wear gloves when washing dishes or performing household chores involving water, minimize exposure to harsh chemicals, moisturize hands and nails, maintain a healthy diet with sufficient iron and biotin, avoid using nails for prying or scraping, and use a nail file for uniform length and shape |
| Treatment | See a dermatologist or doctor for medication, take iron or biotin supplements with medical approval, apply lotion or cream to hands and nails, use non-acetone polish remover, and soak nails when removing gel polish |
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What You'll Learn

Causes of flacking and cracked finger nails
Fingernails are made from a protein called keratin, which is also found in hair. Nails have multiple layers that can peel and cause them to appear thin and weak, making them more prone to breaking and cracking. This condition is called onychoschizia.
Causes of Flaking and Cracked Fingernails
External Causes
- Excessive exposure to water: Spending a lot of time with your hands in and out of water, like when washing dishes, can cause your fingernails to start flaking and cracking.
- Prolonged exposure to hot water: Hot water can dry out your nails, making them more prone to flaking and cracking.
- Moisture: Nails can be affected by too little or too much moisture. Nails that are repeatedly wet and then dried may become thin and weak, causing them to split. On the other hand, nails that are soaked in water for long periods, such as when performing household chores, may become soft and prone to peeling.
- Nail products: Nail polish and nail polish remover contain strong chemicals that can weaken and dry out your nails, making them more likely to crack and flake. This includes acetone-based nail polish removers and gel nail manicures, which require your nails to soak in liquid nail polish remover.
- Artificial nails: Wearing acrylic nails or forcefully removing nail coatings can cause nail damage, peeling, and scarring of the nail beds, leading to thin, fragile nails.
- Aging: As people age, fingernails typically become thinner and more prone to cracking, while toenails thicken.
- Infection: Yeasts, molds, and fungus can enter your nails and cause infections, making them more likely to crack or break.
Internal Causes
- Iron deficiency: Iron is necessary for building strong, healthy nails. A lack of iron can lead to anemia, a condition where the body does not have enough healthy red blood cells to carry oxygen to all tissues. Anemia is a common cause of nail cracking and flaking.
- Vitamin deficiency: In addition to iron, vitamins A, B, C, and D are important for nail health. Biotin, a B vitamin supplement, can help heal your nails, but it should be avoided during pregnancy.
- Medical conditions: In rare cases, nail flaking and cracking may indicate an underlying medical condition, such as thyroid dysfunction, lung disease, or psoriasis.
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Home remedies for nail care
Flaking and cracked fingernails can be caused by various factors, including internal or external environmental factors, underlying health conditions, vitamin deficiencies, and repetitive hand washing. While it may take time and patience to repair damaged nails, here are some home remedies for nail care to help you get started:
Moisturise
Healthy nails have a water content of about 16%, so it's important to keep your nails and cuticles moisturised. Coconut oil, which contains healthy fatty acids, is an excellent natural moisturiser that helps to nurture and strengthen weak and brittle nails. It also promotes nail growth and fortifies the nail beds and cuticles, making them less prone to dryness and peeling.
Nail Coatings
To prevent drying and protect your nails, Holly L. Schippers, a CND Education Ambassador, recommends keeping your nails covered with your favourite nail coating, even if it's just a thin coat of clear polish.
Biotin Supplementation
Biotin, a B vitamin supplement, could help heal your nails by supporting overall nail health. However, it is important to note that you should not take biotin if you are pregnant.
Filing
Gently filing down any nail snags or uneven edges can help prevent further cracks and breakage.
Address Underlying Health Conditions
Brittle nails can sometimes indicate underlying health conditions that may be treated with medications or topical ointments. It is important to seek professional advice if you suspect any health issues.
In addition to these home remedies, maintaining overall nail hygiene and being mindful of your nails during daily activities can help prevent further damage and promote nail health.
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Professional treatments for nail care
Flaking and cracked fingernails can be caused by a variety of factors, including vitamin deficiencies, skin conditions, and frequent exposure to water. While there are home remedies and over-the-counter treatments available, seeking professional help can provide effective and specialised care for your nail concerns.
Consult a Dermatologist
Consulting a dermatologist is a crucial step in addressing flaking and cracked fingernails. These specialists can help identify any underlying medical conditions contributing to your nail issues, such as psoriasis, eczema, or thyroid problems. They may recommend specific treatments or prescribe medications to address the root cause.
Nail Care Treatments
Professional nail care treatments offer a range of options to strengthen and restore the health of your nails. For example, a manicurist or nail technician can recommend specific nail care products, such as biotin-infused nail treatments, which help enhance, repair, and protect your nails. They may also suggest nail hardening treatments or ridge fillers to provide extra support and prevent further cracking.
Cuticle Care
Cuticle care is an essential aspect of nail health. A professional manicurist can help you manage your cuticles by recommending cuticle oils, creams, or softeners to nourish and moisturise the area. This is important because healthy cuticles provide a strong foundation for nail growth and can help prevent further cracking or splitting.
Nail Biting Treatments
If nail biting is a contributing factor to your nail concerns, professional treatments can help address this habit. For example, some nail polishes are specifically designed to deter nail biting by leaving a bitter taste in the mouth. These treatments can help you break the habit and allow your nails to heal and grow stronger.
Nail Strengthening Techniques
Professional manicurists can also provide guidance on nail strengthening techniques. This may include recommending specific nail polishes or base coats that fortify and protect your nails. Additionally, they can advise on proper nail filing techniques to prevent further damage and promote healthy nail growth.
Remember, if you experience persistent nail issues, it is always best to consult a medical professional, as they can help identify any underlying health conditions and provide appropriate treatment options.
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How to prevent cracked nails
Flaking and cracked fingernails can be caused by a variety of factors, including vitamin deficiencies, skin conditions, and even underlying medical conditions. Here are some detailed tips on how to prevent your fingernails from cracking:
Identify the Cause
First, it is important to identify the cause of your flaking and cracked fingernails. This could be due to a variety of reasons, including vitamin deficiencies, frequent exposure to water, or underlying medical conditions. Talk to your doctor if you notice any other symptoms accompanying your nail issues, as they can help diagnose and treat any underlying causes.
Maintain a Balanced Diet
Ensure that you are consuming enough vitamins and minerals that are essential for nail health, including vitamins A, B, C, and D, as well as iron, zinc, and calcium. A balanced diet rich in these nutrients can help strengthen your nails and prevent cracking.
Moisturize Regularly
Frequent exposure to water can lead to nail splitting, so it is important to moisturize your hands and nails regularly, especially after washing them. This helps to keep your nails and the surrounding skin hydrated and less prone to cracking.
Protect Your Nails
When doing household chores or working with your hands, wear plastic or rubber gloves over thin cotton gloves to protect your nails from chemicals and excessive water exposure. This creates a barrier that helps keep your nails healthy and strong.
File Regularly
Gently file your nails to smooth out any snags or uneven edges. This helps prevent further cracks and keeps your nails looking neat and well-maintained.
Treat Infections
Sometimes, yeast or mold infections can enter your nails, making them more susceptible to cracking. If you suspect an infection, consult your doctor, who may prescribe oral antifungal medication to help your nails heal.
Remember, if you've tried these preventive measures and your nails are still cracking after a few months, it is advisable to consult a healthcare professional for further guidance and treatment.
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The impact of skin conditions on nail health
Fingernails and toenails can be affected by a variety of skin conditions, which can cause physical changes and impact overall health. Changes to the nails can be harmless, but they can also indicate an underlying disease or skin condition that requires medical attention. Here are some common skin conditions that can impact nail health:
Onychoschizia
Onychoschizia is a skin condition that causes the splitting of fingernails and toenails. It is quite common in newborns and young children due to their thin nails. However, it can also affect adults, leading to horizontal splitting of the thumbnails and big toes.
Psoriasis
Psoriasis is a skin condition that can cause nail problems. It affects the skin cell production rate, leading to rapid cell generation in just a few days instead of weeks. This can result in nail changes such as pitting, crumbling, and separation from the nail bed.
Eczema
Eczema, also known as atopic dermatitis, is a skin condition that can trigger nail peeling and flaking. It can manifest on the hands, causing dry, flaky skin with red, inflamed areas prone to cracks and fissures, intense itching, and burning sensations.
Paronychia
Paronychia is a bacterial nail infection that usually results from bacteria entering broken skin near the cuticle and nail fold. It can cause pain, swelling, and tenderness around the nail, along with red and warm skin. In some cases, pus may build up under the skin, requiring drainage. Paronychia is more common in individuals with underlying skin conditions and those who frequently work with water or chemicals.
Nutritional Deficiencies
Deficiencies in certain vitamins and minerals, such as vitamins A, B, C, and D, as well as iron, zinc, or calcium, can impact nail health. These deficiencies can lead to brittle nails that are prone to cracking and flaking.
It is important to consult a dermatologist or healthcare provider if you notice any persistent or concerning changes to your nails, as they can provide a professional diagnosis and recommend appropriate treatments.
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Frequently asked questions
There are many potential causes for flaking and cracked fingernails, including:
- Vitamin or mineral deficiencies
- Prolonged exposure to hot water
- Certain manicures, chemicals, or your diet
- Skin conditions like eczema or nail psoriasis
- Yeast or mold infections
If the cracking is mild, you can try:
- Gently filing down any nail snags or uneven edges
- Applying moisturizers to your hands and fingernails after washing them
- Taking a B vitamin supplement like biotin
- Wearing plastic or rubber gloves over thin cotton gloves while doing housework
You should see a doctor if:
- Your nails are not improving after 6-8 weeks or the cracking is getting worse
- Your nails are still cracking after 6 months
- You notice signs of an infection, such as yellow nails or redness and itching of the skin around your nails











































