Also known as: Nail Dystrophy
Nail changes include discoloration, thickening, ridges, brittleness, separation, or spots on the fingernails or toenails. They can reflect local trauma or systemic health conditions.
Nails can reveal a surprising amount about overall health. They grow slowly (fingernails ~3mm/month, toenails ~1mm/month), so nail changes often reflect conditions from weeks to months prior.
Fungal nail infections (onychomycosis) are the most common cause of nail discoloration and thickening, affecting up to 14% of the population. They are more common in toenails due to the warm, moist environment in shoes.
Nail pitting (small dents) is strongly associated with psoriasis and can sometimes appear before skin symptoms. Horizontal lines (Beau's lines) can reflect past illness, while spoon-shaped nails suggest iron deficiency.
There are several possible reasons you may be experiencing Nail Changes. Here are the most common ones.
Onychomycosis causes thickened, discolored, brittle nails that may separate from the nail bed. Difficult to treat.
Causes nail pitting, ridging, discoloration, and separation. Often accompanies skin psoriasis but can occur alone.
Causes spoon-shaped nails (koilonychia), brittle nails, and vertical ridging.
Injury causes bruising under the nail (subungual hematoma), ridges from nail matrix damage, or nail loss.
These approaches may help manage nail changes at home. Always consult a healthcare provider if symptoms persist or worsen.
Moisture promotes fungal growth. Dry hands and feet thoroughly, especially between toes.
Biotin (2.5mg daily) may improve brittle nails after 3-6 months of consistent use.
Avoid harsh chemicals, excessive filing, and keep nails trimmed straight across.
Clinical examination, nail clippings for fungal culture and microscopy, blood tests for iron and thyroid, and nail biopsy for unclear cases.
See a doctor if nails develop dark streaks (especially a single nail), separation from the nail bed, significant deformity, or changes accompanied by skin or joint symptoms.
Steps you can take to reduce the likelihood of experiencing nail changes.
Keep nails clean and dry
Wear protective gloves for wet work
Don't share nail tools
Wear breathable shoes
Eat iron-rich foods
Small white spots (leukonychia) usually result from minor nail matrix trauma and grow out harmlessly.
Yes. Clubbing suggests lung disease, spoon nails suggest iron deficiency, and pitting suggests psoriasis.
Fingernails take 4-6 months to regrow completely; toenails take 12-18 months.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.