
What your nails say about your health
Revisado por pares por Dr Colin Tidy, MRCGPÚltima actualización por Victoria RawLast updated 12 Aug 2025
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Most of us take them for granted - after all, they aren't alive, and you can break one without it hurting. I'm talking, of course, about your nails. But you'd be surprised at how many things they tell you about your general health.
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Infecciones fúngicas de las uñas
Fungal infections - whether it's pie de atleta, vaginal thrush or that sore, itchy rash in your groin or under your breasts - very commonly affectyour skin.
Candidiasis is caused by a fungal infection, from yeasts which normally live harmlessly on all our skins. But if a fungus gets into your nails, it can be difficult to get rid of. The main symptoms are thickened, flaky, discoloured nails - often your toenails.
If your doctor thinks a fungus may be to blame, they will probably send a clipping from your nail to the laboratory. Over the counter medicines containing amorolfine 5% can work on nails but can take months. If the infection is on multiple nails, you may need to take a tablet a day for three to six months to get rid of the infection. Fortunately, it may be unsightly but it's harmless.
What your nails say about your health
La psoriasis
Volver al contenidoLittle pits in your nails are common. Very occasionally, they can be a sign of a condition called psoriasis. We usually think of psoriasis as a skin condition which causes red patches - but in a few people, the main symptom is joint pain. It's worth talking to your doctor if you have persistent or unsightly pits in your nails.
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Acropaquia
Volver al contenidoNo, not partying late into the night, but swelling of the end portion of the fingers, along with curving over of the fingernails. It's sometimes described as 'drumstick fingers' because of the swelling.
Usually linked to lung or heart conditions, along with inflammatory bowel diseases such as Crohn y colitis ulcerosa, or cirrosis biliar primaria, it definitely needs checking out.
White spots
Volver al contenidoI've lost count of the number of people who've told me they're short of calcium because they have white spots or lines on their nails. In fact, it's nothing to do with this. It's probably simple bashes and bangs to your nails.
The best thing you can do is to stop worrying - and maybe protect your nails to prevent it happening again. It's very common in gardeners and DIY enthusiasts. The spots or lines will gradually grow out to the ends of your nails and then disappear.
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Ingrowing toenails
Volver al contenidoIngrowing toenails usually affect the side of your big toe. The nail starts to grow into the flesh at the side of your nail, and can cause a serious infection.
Prevención
This can often be treated with antibiotic creams or tablets. Occasionally, it keeps coming back, and you may need a minor operation to remove part or your entire toenail.
Simple steps to keep ingrowing toenails at bay
Don't ever cut your toenails down at the sides - always cut them straight across, leaving them longer at the sides.
Make sure your shoes have plenty of room at the front, so your toes aren't squashed.
Wear open-toed sandals or comfy slippers at home, to avoid pressure on your toes.
These measures will also reduce your chance developing bunions too. Finally, if you find it hard to cut your own toenails, talk to your doctor about a referral to your local chiropody or toenail cutting service.
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Why do we have nails?
Strictly speaking, unless your survival depends on the ability to pick fruit from the lower branches of trees, you don't actually need nails. Sure, fingernails are useful things to have when you want to pop open a tube of Pringles or find out whether you've won the lottery without hunting around for a coin. But they are not essential for life in the same way as, say, the lungs are. Fingernails can be looked on as a little gift from evolution that you can spray with sparkle or simply chew on when you are anxious, but they are not vital for human existence. Similarly, toenails have their uses, but if you didn't have them, you'd get by.
por el Dr. Laurence Knott

Salud de la piel, uñas y cabello
Infección de uñas por hongos
La infección por hongos en las uñas (tinea unguium) es común, especialmente en las uñas de los pies en personas mayores. La infección causa uñas engrosadas y antiestéticas que a veces se vuelven dolorosas. La medicación a menudo funciona bien para eliminar la infección, pero es posible que necesite tomarla durante varios meses o más.
por la Dra. Philippa Vincent, MRCGP
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Historial del artículo
La información en esta página es revisada por pares por clínicos calificados.
Próxima revisión: 12 Ago 2028
12 Aug 2025 | Última versión
25 Jan 2019 | Publicado originalmente
Escrito por:
Dr Sarah Jarvis MBE, FRCGP

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