
White toenails, referred to as leukonychia by medical professionals, are a relatively common nail condition. While the condition is more common in men, it can also impact women. White toenails can be caused by a number of factors, including fungal infections, psoriasis, nail dehydration, mineral deficiencies, and zinc or iron deficiency anaemia.
| Characteristics | Values |
|---|---|
| Name | Leukonychia |
| Prevalence | More common in men, but can impact women |
| Causes | Fungus, psoriasis, nail dehydration, mineral deficiencies |
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What You'll Learn

White toenails are referred to as leukonychia by medical professionals
White toenails could be a sign of a fungal infection, psoriasis, nail dehydration or mineral deficiencies. Officially called onychomycosis, nail fungus is a common cause of white spots on toenails. A toenail fungal infection typically presents as a white or yellow-brown spot under the tip or side of your toenail and, if mild, may resolve on its own.
If most of a toenail appears white – except for the tip – you may have a mineral deficiency that is causing the discolouration. Both iron deficiency anaemia and zinc deficiency can cause white nails that are thin and brittle. While mineral deficiencies’ effects on the nails are common, you will typically notice other symptoms of an iron or zinc deficiency before you see a white nail. In either case, it’s important to see a medical professional if you suspect you have a mineral deficiency.
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White toenails could be a sign of a fungal infection
White toenails can also be a sign of mineral deficiency, such as iron deficiency anaemia or zinc deficiency. This can cause the nails to become thin and brittle. While mineral deficiencies typically present with other symptoms before nail discolouration, it is still important to seek medical advice if you suspect a deficiency.
According to Dr. John "Jay" Wofford of U.S. Dermatology Partners in Dallas and Plano, Texas, white toenails are relatively common in male patients and become more prevalent as men age. While the condition is typically benign, there are situations where white toenails can indicate something more serious. Therefore, if you notice any changes to your nail health, it is always best to consult a dermatologist for a proper evaluation.
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Toenails that turn white could be caused by mineral deficiencies
White toenails, referred to as leukonychia by medical professionals, are relatively common in male patients, with incidence increasing significantly as men age. While men are more prone to this condition, it can certainly impact women as well. It’s typically a benign condition, but there are some situations where white toenails indicate something more serious.
If most of a toenail appears white – except for the tip – you may have a mineral deficiency that is causing the discoloration. Both iron deficiency anaemia and zinc deficiency can cause white nails that are thin and brittle. While mineral deficiencies’ effects on the nails are common, you will typically notice other symptoms of an iron or zinc deficiency before you see a white nail. In either case, it’s important to see a medical professional if you suspect you have a mineral deficiency. While it may seem obvious to self-treat a perceived deficiency with mineral supplements, doing so can be detrimental to your health and can even lead to a dangerous overdose.
White spots on toenails or toenails that turn white could be a sign of fungus or something else entirely. From fungal infections and psoriasis to nail dehydration and mineral deficiencies, there are a number of causes for white spots on toenails. Officially called onychomycosis, nail fungus is a common cause of white spots on toenails. A toenail fungal infection typically presents as a white or yellow-brown spot under the tip or side of your toenail and, if mild, may resolve on its own.
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White toenails can be a benign condition
White toenails can be caused by a number of factors, including fungal infections, psoriasis, nail dehydration, and mineral deficiencies. If most of a toenail appears white – except for the tip – you may have a mineral deficiency that is causing the discoloration. Both iron deficiency anemia and zinc deficiency can cause white nails that are thin and brittle. While mineral deficiencies’ effects on the nails are common, you will typically notice other symptoms of an iron or zinc deficiency before you see a white nail. In either case, it’s important to see a medical professional if you suspect you have a mineral deficiency.
Nail fungus is a common cause of white spots on toenails. A toenail fungal infection typically presents as a white or yellow-brown spot under the tip or side of your toenail and, if mild, may resolve on its own.
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White toenails can indicate something more serious
White toenails, referred to as leukonychia by medical professionals, are relatively common in male patients, with incidence increasing significantly as men age. While it is typically a benign condition, there are some situations where white toenails indicate something more serious.
White toenails can be a sign of a fungal infection, officially called onychomycosis. A toenail fungal infection typically presents as a white or yellow-brown spot under the tip or side of your toenail and, if mild, may resolve on its own.
White toenails can also be a sign of mineral deficiency, such as iron deficiency anaemia or zinc deficiency. Nails affected by mineral deficiency are typically thin and brittle, and you will usually notice other symptoms of the deficiency before you see the white nail.
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Frequently asked questions
White toenails can be caused by a number of things, including fungal infections, psoriasis, nail dehydration, mineral deficiencies, or a benign condition called leukonychia.
White toenails, referred to as leukonychia by medical professionals, are relatively common in male patients, with incidence increasing significantly as men age. While men are more prone to this condition, it can certainly impact women as well.
Both iron deficiency anaemia and zinc deficiency can cause white nails that are thin and brittle. You will typically notice other symptoms of an iron or zinc deficiency before you see a white nail.











































