
Some believe that discoloured nails on the ring finger can indicate heart issues. Traditionally, wearing a ring on the fourth (ring) finger of the left hand was believed to signify the connection between the heart and the veins, as the vein of love (Vena Amoris) was thought to run directly from that finger to the heart. However, discoloured nails can be caused by a variety of factors, including liver problems, fungal infections, thyroid disease, lung disease, diabetes, psoriasis, and inflammatory arthritis. Bluish nails in particular can indicate that the body isn't getting enough oxygen, which could be a sign of a lung problem such as emphysema.
| Characteristics | Values |
|---|---|
| Discolouration | Bluish nails can be associated with heart problems |
| --- | Reddish-brown discolouration is common |
| --- | White nails can be caused by trauma, anaemia, dietary deficiencies, heart or kidney disease, or poisoning |
| --- | Nails that are mostly white with darker rims can indicate liver problems |
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What You'll Learn
- Bluish nails can indicate that the body isn't getting enough oxygen, which could be a sign of a lung problem
- Nails with a reddish-brown discolouration could be a sign of inflammation
- White nails with darker rims can indicate liver problems
- Yellow nails are often a sign of a fungal infection, but can also indicate more serious conditions such as thyroid disease, lung disease, diabetes or psoriasis
- Rippled or pitted nails can be an early sign of psoriasis or inflammatory arthritis

Bluish nails can indicate that the body isn't getting enough oxygen, which could be a sign of a lung problem
In addition to lung problems, bluish nails can also be a sign of heart issues. This is because the heart is responsible for pumping oxygen-rich blood throughout the body. If the heart isn't functioning properly, it may not be able to circulate enough oxygen-rich blood to the nails, causing them to appear bluish.
It's important to note that nail discolouration can have many causes and may not always be a cause for concern. However, if you notice any changes in your nail colour, it's always a good idea to consult a healthcare professional to rule out any potential health issues.
Other causes of nail discolouration include fungal infections, liver problems, thyroid disease, diabetes, and psoriasis. Therefore, it's important to consider all possible causes and seek medical advice if you have any concerns.
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Nails with a reddish-brown discolouration could be a sign of inflammation
Discoloured nails can be a sign of heart issues. Bluish nails can indicate that the body isn't getting enough oxygen, which could be a sign of a lung problem. However, discoloured nails can also be a sign of inflammation. Nails with a reddish-brown discolouration could be a sign of inflammation, infection, or psoriasis.
Terry's nails, for example, are a type of nail discolouration that can be caused by severe liver scarring. The nails look white or washed-out with a thin, reddish-brown strip near the tip. Lindsay's nails are another example of discoloured nails, which are half white and half brown or red.
Redness and swelling around a nail can also be a sign of infection, which can be treated with soaks and antibiotics if diagnosed early.
Melanonychia is another condition that can cause nail discolouration, characterised by brownish-black discolouration of the nail plate. This can range from benign causes to less common invasive and in situ melanomas.
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White nails with darker rims can indicate liver problems
Discoloured nails can be indicative of health issues. Bluish nails, for example, can mean that the body isn't getting enough oxygen and could be a sign of a lung problem, such as emphysema. White nails with darker rims can indicate liver problems, such as hepatitis. In addition to discoloured nails, the skin may also appear jaundiced, which is another sign of liver trouble.
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Yellow nails are often a sign of a fungal infection, but can also indicate more serious conditions such as thyroid disease, lung disease, diabetes or psoriasis
Some heart problems can be associated with bluish nails. White nails can be the result of several things, including heart disease, but also trauma, anaemia, dietary deficiencies, or kidney disease. Yellow nails can be a sign of a fungal infection, but they can also indicate more serious conditions such as thyroid disease, lung disease, diabetes or psoriasis. If the nail surface is rippled or pitted, this may be an early sign of psoriasis or inflammatory arthritis.
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Rippled or pitted nails can be an early sign of psoriasis or inflammatory arthritis
Discoloured nails can be indicative of a range of health issues. Bluish nails, for instance, can suggest that the body isn't getting enough oxygen, which could be a sign of a lung problem such as emphysema.
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Frequently asked questions
Nails with a bluish tint can mean the body isn't getting enough oxygen, which could indicate a lung problem, such as emphysema, or a heart problem.
This may be an early sign of psoriasis or inflammatory arthritis.
This could be a sign of thyroid disease.
Cracked or split nails, especially with a yellowish hue, are likely due to a fungal infection.
Discolouration of the nail is common; the skin under the nail can seem reddish-brown.











































