There are many reasons why nails can turn yellow. Some of the most common causes include:
- Fungal infection: This is the most common cause of yellow nails, especially in toenails. Fungal infections can cause the nails to become thickened, brittle, and yellow.
- Nail polish: Dark-colored nail polish can stain the nails yellow over time, especially if it is not removed properly.
- Smoking: Smoking can stain the nails yellow and also damage the nail bed, making them more susceptible to infection.
- Trauma: Injury to the nail, such as hitting it on something, can cause it to turn yellow.
- Certain medications: Some medications, such as certain antibiotics, cancer drugs, and antidepressants, can cause yellow nails as a side effect.
- Medical conditions: Certain medical conditions, such as psoriasis, thyroid disease, and kidney disease, can also cause yellow nails.
If you have yellow nails, it is important to see a doctor or dermatologist to determine the underlying cause and get the appropriate treatment. If the cause is a fungal infection, your doctor may prescribe antifungal medication. If the cause is nail polish, you can try using a base coat to protect your nails from staining. If the cause is smoking, quitting is the best way to prevent your nails from turning yellow.
Here are some tips to help prevent yellow nails:
- Avoid wearing dark-colored nail polish for long periods of time.
- Remove nail polish thoroughly with a good-quality nail polish remover.
- Keep your nails clean and dry.
- Wear gloves when using harsh chemicals or cleaning products.
- Avoid biting your nails.
- See a doctor or dermatologist for any underlying medical conditions that may be causing your nails to turn yellow.