Do your nails crack, split or break even with little pressure? Brittle nails are quite common and are often linked to everyday habits, frequent exposure to water or chemicals, or nutritional deficiencies. However, nails that remain weak and keep breaking can sometimes point to an underlying health problem.
Here are 5 common causes of brittle nails that you should pay attention to:
1. Nutritional deficiencies
Your nails need adequate nutrients to grow strong. A lack of iron, protein, zinc or certain vitamins may contribute to weak or brittle nails. Iron deficiency, in particular, can sometimes be associated with changes in the nails.
If your diet is low in nutritious foods, make sure you include vegetables, fruits, pulses, dairy or other protein sources, nuts and seeds.
2. Frequent exposure to water and chemicals
Repeatedly washing your hands, keeping your hands in water for long periods, or frequently using cleaning products can weaken the nails. Nail polish removers and other harsh chemicals may also make nails dry and more prone to splitting.
Wearing protective gloves while doing household cleaning can help reduce exposure.
3. Excessive use of nail polish and remover
Regular manicures, prolonged use of nail polish and frequent use of nail-polish remover can contribute to dry, fragile nails in some people. Acetone-based removers can be particularly drying.
Giving your nails occasional breaks and keeping them moisturised may help.
4. Thyroid and other health conditions
Persistent changes in nail strength can sometimes be associated with medical conditions, including thyroid disorders. Certain skin conditions, fungal infections and other illnesses can also change the appearance or texture of nails.
This does not mean brittle nails automatically indicate a disease, but frequent or unexplained changes deserve attention.
5. Nail biting, picking or physical trauma
Biting your nails, peeling off polish, using nails as tools, or repeatedly hitting or pressing them can cause cracks and splitting. Even small injuries can make nails more vulnerable to breaking.
Keep nails trimmed and avoid using them to open packages, scrape surfaces or perform other tasks better suited to a tool.
What Can You Do to Make Nails Stronger?
A few simple habits can protect your nails:
- Keep nails clean and trimmed.
- Moisturise your hands and nails regularly.
- Wear gloves when handling cleaning products or doing prolonged wet work.
- Avoid biting or picking your nails.
- Limit unnecessary exposure to harsh nail products.
- Maintain a balanced diet with adequate protein, iron and other nutrients.
- Avoid taking iron, biotin or other supplements without a medical reason or professional advice.
When Should You See a Doctor?
If your nails continue to break despite improving your nail-care routine, or you notice changes in nail colour, shape or thickness, pain, swelling, separation of the nail from the nail bed, or other symptoms, consider speaking with a doctor or dermatologist.
Bottom Line
Occasional nail breakage is usually not a reason to panic. But if your nails are frequently cracking, splitting or becoming unusually weak, don’t simply ignore it. Your nail-care routine, diet and certain health conditions can all play a role, so identifying the underlying cause is the best way to protect your nails.
