One of the most common causes of purple discoloration under a toenail is a fungal infection. This type of infection, also known as onychomycosis, can cause the nail to turn a dark purple or even black color. It is usually accompanied by other symptoms such as thickened, brittle, or crumbly nails. If you notice a purple color under your toenail and suspect it may be a fungal infection, it's important to seek treatment. Fungal infections can spread and become more difficult to treat if left untreated. Treatment options for toenail fungus include topical antifungal medications, oral medications, and in severe cases, surgical removal of the affected nail.1. Purple toenail fungus
In addition to purple, fungal infections can also cause the toenail to turn yellow, white, or green. This is due to the buildup of keratin, a protein found in nails, which can create a discolored appearance. Other causes of nail discoloration include bacterial infections, psoriasis, and medication side effects. If you are unsure of the cause of your purple toenail, it's best to consult a doctor for a proper diagnosis.2. Nail discoloration
Infections, whether bacterial or fungal, can cause discoloration and changes in the appearance of the toenail. If you have recently injured your toe or have a weakened immune system, you may be more susceptible to developing a toenail infection. It's important to keep the affected area clean and dry to prevent further infection. In some cases, antibiotics may be prescribed to treat a bacterial infection.3. Toenail infection
The nail bed is the skin beneath the nail that gives it its pink color. When there is an injury or infection, the nail bed may become inflamed and appear purple or red. This is often accompanied by pain and tenderness around the affected toe. Injuries to the nail bed can be caused by stubbing the toe, dropping something heavy on it, or wearing ill-fitting shoes. It's important to seek medical attention if the pain and discoloration persist.4. Purple nail bed
Similar to an injury to the nail bed, trauma to the toenail itself can cause it to turn purple. This can happen from stubbing the toe, dropping something on it, or even from repetitive pressure from tight-fitting shoes. If the toenail is only slightly bruised, it will usually heal on its own. However, if the toenail is completely detached or the pain and discoloration persist, seek medical attention.5. Toenail trauma
A subungual hematoma is a collection of blood under the toenail, usually caused by trauma or injury. This can cause the toenail to turn a dark purple or black color and may be accompanied by pain and swelling. In most cases, a subungual hematoma will resolve on its own within a few weeks. However, if the pain is severe or there are signs of infection, seek medical treatment.6. Subungual hematoma
Similar to a subungual hematoma, a bruise under the toenail can cause discoloration and pain. This can happen from an injury, such as stubbing the toe, or from repetitive pressure on the nail. If the bruise is minor, it will usually heal on its own. However, if the pain and discoloration persist or if the toenail is completely detached, consult a doctor for proper treatment.7. Toenail bruise
Melanoma is a type of skin cancer that can occur under the toenail. It can cause the toenail to appear dark purple or black and may be accompanied by other symptoms such as changes in the nail shape, bleeding, or a dark streak under the nail. If you suspect you may have melanoma under your toenail, it's important to seek medical attention immediately. Early detection and treatment can greatly increase the chances of a successful outcome.8. Toenail melanoma
Psoriasis is a chronic skin condition that can affect the nails. It can cause the toenail to become thickened, discolored, and possibly turn purple. Other symptoms of toenail psoriasis may include pitting, ridges, and separation of the nail from the nail bed. Treatment for toenail psoriasis may include topical medications, oral medications, and lifestyle changes to manage the condition. It's important to consult a doctor for proper diagnosis and treatment.9. Toenail psoriasis
In addition to trauma and injury, other factors such as poor foot hygiene, wearing tight-fitting shoes, and constant exposure to moisture can increase the risk of toenail injury. This can cause the toenail to become weak and prone to discoloration and infection. Prevent toenail injuries by practicing good foot hygiene, wearing properly fitting shoes, and avoiding repetitive pressure on the toes. Seek medical attention if you notice any changes in the appearance of your toenails.10. Toenail injury
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