Learning About Mycetoma

Mycetoma is a long-lasting infection that affects the skin and the soft tissues below. If it is not treated, it can spread to nearby tissue and bone over time. It most often affects the foot, but any part of the body can be affected.

Mycetoma develops when certain bacteria or fungi enter the body through a cut or break in the skin. These bacteria and fungi are commonly found in soil and plants. More than 70 types of bacteria and fungi have been linked to mycetoma. Small injuries like thorn pricks, splinters, and cuts are common ways bacteria and fungi get into the body.

Mycetoma is most common in hot, dry parts of the world. Sudan, Mexico, and India account for the most cases worldwide.

Most people who get mycetoma are between 15 and 30 years old. Farmers and others who work outside are at higher risk, especially if they spend a lot of time near soil and plants. Walking barefoot can also raise the risk.

Mycetoma usually starts as a small, painless bump under the skin. The bump grows slowly over months or years. Over time, small openings may form on the skin and drain fluid. This fluid contains tiny particles called "grains."

Grains are made up of the bacteria or fungi causing the infection. They can be white, yellow, red, brown, or black. The foot is the most common place to get mycetoma. This is why the infection is sometimes called "Madura foot."

In serious cases, the infection can spread to deeper tissue and bone. This can damage parts of the body and make it hard to move or use the affected area. In very serious cases, the disease can be life-threatening. Pain is usually mild at first but can get worse over time.

Doctors diagnose mycetoma by looking at the affected area and asking about symptoms. They also try to find out what microorganism is causing the infection.

Lab tests can show whether the infection is caused by fungi or bacteria. But these tests can be expensive and are not always available.

Imaging tests like X-rays and MRIs can show how far the infection has spread.

Treatment depends on what is causing the infection. Bacterial mycetoma is treated with antibiotics. Fungal mycetoma is treated with antifungal medicine and surgery.

Treatment often lasts many months or more than a year. It can be expensive and hard to access. It does not always work well. Treatment can also cause side effects.

Surgery may be used to remove infected tissue. In very serious cases, a limb may need to be removed. This is more common with fungal mycetoma.

With fungal mycetoma, infections often come back.

Protecting your skin can help lower your risk. This includes:

• Wearing closed-toe shoes and protective clothing when working outside.
• Trying to avoid cuts and puncture wounds from thorns or sharp objects.
• Cleaning any cuts or scrapes right away.
• Checking your skin often for unusual swelling or sores.

If you notice signs of mycetoma, see a doctor as soon as possible. Finding and treating it early can prevent serious damage.