
Reasons Why Your Nails Look Warped and Brittle

Warped or brittle nails aren’t just a cosmetic issue but often a sign that something deeper might be going on.
Here at Utah Musculoskeletal Specialists, Dan Preece, DPM, Darren Groberg, DPM, and Christian Smith, DPM, work with folks throughout the Salt Lake City area to uncover the reasons behind nail abnormalities and offer effective treatments and practical solutions.
Common causes of warped and brittle toenails
Several factors can lead to changes in the look or texture of your toenails. Understanding these causes can help pinpoint the issue and guide you to the right course of action.
1. Fungal infections
A fungal infection is one of the most common culprits behind thickened, discolored, or crumbly nails. Nail fungus, medically known as onychomycosis, thrives in moist environments and can lead to yellow or brownish discoloration, brittleness, and even nail detachment.
Symptoms include thickened nails, foul odor, and a chalky or powdery appearance.
Fungal infections are contagious, so early treatment can help prevent the spread to other nails or other people.
2. Nutritional deficiencies
A lack of essential nutrients can weaken your toenails, making them brittle and prone to breakage.
Iron deficiency (anemia) results in an inadequate oxygen supply to the nail beds, leading to thin, fragile nails.
Biotin (vitamin B7) supports keratin production. Low levels can lead to weak nail structures.
3. Trauma or repeated pressure
Trauma, like stubbing your toe or wearing tight shoes for too long, can warp or deform your nails temporarily or permanently.
4. Aging
With age, it’s natural for toenails to thicken or become more prone to splitting. This process happens as nail growth slows and the nail matrix wears over time.
5. Medical conditions
Underlying health conditions are another major factor to consider. Some examples include:
- Psoriasis: A condition that causes nail pitting, discoloration, and brittleness
- Thyroid dysfunction: Hypothyroidism can cause slow-growing and fragile nails
- Raynaud’s syndrome: Poor circulation to the extremities can result in nail abnormalities
- Iron deficiency (anemia) can result in brittle or spoon-shaped nails (koilonychia)
- Diabetes: Poor blood circulation and infections can cause nail problems
These medical conditions demonstrate the importance of monitoring your nails so that you can recognize the changes that may indicate underlying health issues.
6. Frequent exposure to harsh conditions
Toenails exposed to water, cleaning agents, or nail polish removers can lose their natural moisture barrier, resulting in brittleness or cracking.
How to improve your toenail health
Here are some simple-yet-effective ways to improve the health of your nails.
Keep your toenails moisturized
Dry nails are brittle nails — hydrate them.
Apply nail moisturizers containing lanolin or alpha-hydroxy acids to your toenails daily.
Use protective balms, especially in dry or winter weather.
Choose the right shoes
Avoid wearing shoes that are too tight or apply pressure on your toenails. Opt for footwear with a spacious toe box to reduce unnecessary strain.
Switch to gentle nail care
Your nail routine matters.
- Cut toenails straight across to prevent ingrown nails
- Avoid using harsh nail polish removers, especially those containing acetone
- File nails gently with a fine emery board, going in one direction to avoid breakage
Taking the time to trim your toenails correctly keeps them healthy and helps you avoid the pain of an ingrown toenail.
Strengthen from within
Your diet has a direct impact on nail health. Eating the right foods or taking supplements can help restore nail strength.
- Iron-rich foods: spinach, red meat, lentils, and tofu
- Biotin-rich foods: eggs, nuts, seeds, and whole grains
- Omega-3s: salmon, chia seeds, and walnuts to maintain healthy cuticles
If dietary changes aren’t enough, consult your doctor about supplements like biotin.
When to seek professional help for nail disorders
While you can remedy many nail issues at home, some conditions require a professional evaluation. If your toenails show persistent changes in color, shape, or texture despite lifestyle changes, we can pinpoint the issue.
At Utah Musculoskeletal Specialists, we don’t just stop at diagnosis. Our comprehensive care includes custom treatment plans tailored to your unique needs, whether it’s laser therapy for fungal infections, addressing systemic conditions, or advanced diagnostics to rule out underlying medical concerns.
Is your toenail health keeping you from living your best life? Call our experts, Dan Preece, DPM, and Darren Groberg, DPM, a branch of Utah Musculoskeletal Specialists, at 801-285-0849, or request an appointment online.
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