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Tuesday, 16 September 2025 00:00

Causes and Treatment of Black Toenail

A black toenail can be concerning because it may develop from a variety of causes, ranging from trauma to underlying health issues. The most common cause of a blackened toenail is injury. Stubbing the toe or repeated pressure from shoes can trap blood under the nail and cause it to darken. Runners often experience this type of injury, sometimes called runner’s toe. Discoloration may also signal a fungal infection, where organisms thrive under the nail and can lead to thickening or brittleness. Ingrown toenails or bacterial infections can cause similar toenail changes. Medical conditions like diabetes, circulation problems, or even vitamin deficiencies may also  contribute to nail darkening. Rarely, melanoma, a form of skin cancer, may appear as a dark streak under the toenail. A podiatrist can examine the toenail and order appropriate tests. Treatment may involve draining trapped blood, addressing infection, or, in severe cases, surgery. If you notice discoloration of a toenail, it is suggested that you schedule an appointment with a podiatrist for an evaluation and appropriate treatment.

Toe pain can disrupt your daily activities. If you have any concerns, contact David K. Morris, DPM of Florida. Our doctor can provide the care you need to keep you pain-free and on your feet.

What Causes Toe Pain?

Most severe toe pain is caused due to a sports injury, trauma from dropping something heavy on the toe, or bumping into something rigid. Other problems can develop over time for various reasons.

Toe pain can be caused by one or more ailments. The most common include:

  • Trauma
  • Sports injury
  • Wearing shoes that are too tight
  • Arthritis
  • Gout
  • Corns and calluses
  • Hammertoe
  • Bunions
  • Blisters
  • Ingrown toenails
  • Sprains
  • Fractures (broken bones)
  • Dislocations

When to See a Podiatrist

  • Severe pain
  • Persistent pain that lasts more than a week
  • Signs of infection
  • Continued swelling
  • Pain that prevents walking

Diagnosis

In many cases the cause of toe pain is obvious, but in others, a podiatrist may want to use more advanced methods to determine the problem. These can range from simple visual inspections and sensation tests to X-rays and MRI scans. Prior medical history, family medical history, and any recent physical traumatic events will all be taken into consideration for a proper diagnosis.

Treatment

Treatments for toe pain and injuries vary and may include shoe inserts, padding, taping, medicines, injections, and in some cases, surgery. If you believe that you have broken a toe, please see a podiatrist as soon as possible.

If you have any questions please contact our office located in Plantation, FL . We offer the newest diagnostic and treatment technologies for all your foot and ankle needs.

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