Why Are My Nails Yellow? Causes and Fixes
Yellow nails look dramatic, but in the vast majority of cases the cause is completely harmless: colour pigments. Here are the typical causes — and what to do about each of them.
The typical causes
- Colour polish without base coat. By far the most common cause: strong pigments (red, orange, dark tones) sink into the nail plate when there is no base in between.
- Smoking. Nicotine stains both skin and nails over time.
- Self-tanner and similar products. Temporarily stain the nail surface.
- Natural ageing. Nails gradually become more yellowish and matte over the years — completely normal.
What you can do
- Buff the surface lightly — the staining usually sits in the outermost layer.
- ALWAYS use base coat under colour — it prevents almost all pigment staining.
- Give your nails a break with care: cuticle oil daily, and let the staining grow out — the nail renews itself in about 4-6 months.
- Hide it in the meantime: a nude or milky gel polish covers beautifully while the nail grows out.
When should you see a doctor?
If a yellow nail is also thickened, crumbly or sore — or only one nail changes noticeably — it could be a fungal infection or something else that needs treatment. Neither polish nor care can fix that: see a doctor.
Frequently asked questions
Why do nails turn yellow from nail polish?
Colour pigments sink into the nail plate when there is no base coat in between. Reds and dark tones are the worst.
Do yellow nails go away on their own?
Yes — pigment staining grows out with the nail over 4-6 months. A light buff often removes most of it right away.
Can I apply gel polish over yellow nails?
Yes, it is harmless — use base coat, and consider an opaque colour while the staining grows out.
When are yellow nails worth a doctor's visit?
When the nail is also thickened, crumbly or sore — or only one nail is affected. It could be a fungal infection that needs treatment.
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