A lump in the arch of the foot may indicate a plantar fibroma has developed. It is defined as a nodule that forms in the arch, and is found inside the plantar fascia, which is the portion of tissue that connects the heel to the toes. This is a benign condition, but it may cause pain and discomfort. Studies have shown it can be caused by genetic reasons or by a foot injury. Additionally, certain medical conditions can make some patients prone to developing a plantar fibroma. These can include diabetes, epilepsy, or liver disease. Many people have found relief by massaging the affected foot and keeping weight off of it as best as possible. If you have a lump on your foot, please consult with a podiatrist who can effectively diagnose and treat a plantar fibroma.

A plantar fibroma may disrupt your daily activities. If you have any concerns, contact the podiatrists of Issaquah Foot & Ankle Specialists. Our doctors can provide the care you need to keep you pain-free and on your feet.

Plantar Fibroma

A plantar fibroma is a fibrous knot in the arch of the foot. It is embedded in the plantar fascia which is a band of tissue that extends from the heel to the toes along the bottom of the foot. There can be multiple plantar fibromas in the feet at the same time. There are no known causes for this condition. If you have a plantar fibroma, there will be a bump in the arch of your foot that cannot be missed. Any associated pain is most often due to a shoe rubbing against the nodule. Non-surgical options, such as steroid injections, physical therapy, and orthotics should be tried first. Surgery is a last resort and is the only thing that will remove a plantar fibroma entirely. Consult with a podiatrist for a proper diagnosis and to determine the treatment regimen that is right for you.

What Causes a Plantar Fibroma?

While there are no specific causes identified, a plantar fibroma can possibly come from genetic predisposition or the formation of scar tissue that forms from healing the tears in the plantar fascia.

What Are the Symptoms of a Plantar Fibroma?

There will be a noticeable lump in the arch of the foot that may or may not cause pain. If pain is felt, it is typically because a shoe is rubbing up against the lump or when walking or standing barefoot.

Treatment and Prevention

A plantar fibroma will not disappear without treatment, but it can get smaller and be a non-issue. If pain persists, a podiatrist examines the foot and when the arch of the foot is pressed, pain can be felt down to the toes. An MRI or biopsy might be performed to help diagnose or evaluate the plantar fibroma. The following non-surgical options are generally enough to reduce the size and pain of these nodules:

• Steroid injections
• Orthotics
• Physical therapy to help apply anti-inflammatory creams on the bump 

Surgery is considered if the mass increases in size and the patient continues to feel pain after non-surgical methods are tried.

If you have any questions please feel free to contact one of our offices located in Issaquah, WA . We offer the newest diagnostic tools and technology to treat your foot and ankle needs.