What is a plantar fibroma?
Plantar fibromas are growths that develop in the arch of the foot (on the plantar fascia), which is the band of tissue that spans the bottom of your foot. Fortunately, these growths are non-cancerous and therefore pose little threat, but can, however, cause pain or discomfort when walking or standing for long periods of time.
What causes a plantar fibroma?
The exact causes of plantar fibromas is not known, but many experts conclude that they begin with a small tear in your plantar fascia from a specific trauma to the affected area. The theory is that these bumps found in the arch of the foot are a result of scare tissue formed from the body attempting to heal the tears.
What are the symptoms of a plantar fibroma?
The biggest tell-tale sign of a plantar fibroma is a visibly noticeable, firm bump found on the arch of the foot. It may change in size or stay the same over time and they can arrive singularly or in groups. It’s also important to be aware that a plantar fibroma may or may not come with pain. Typically, pain is felt with a plantar fibroma when a shoe pushes it against it.
How is a plantar fibroma diagnosed?
In working to diagnose a plantar fibroma, your doctor will do a physical examination of the foot by pressing on the affected area. This can produce pain that radiates to the toes. An MRI scan or soft tissue biopsy may be performed to further assess the lump and aid in diagnosis.
What are treatment options for a plantar fibroma?
Treatment for a plantar fibroma aims to relieve your symptoms. The most common treatments may include:
- Over-the-counter NSAIDs like aspirin or ibuprofen to reduce pain and inflammation
- Physical therapy
- Orthotic devices
- Corticosteroid injections
In rare cases or if symptoms don't clear up or aren't manageable with nonsurgical treatments, surgery may be used to remove the fibroma from the foot. If surgery is recommended to you to best treat your condition, it’s important to know that removing a plantar fibroma can result in the flattening of the arch or the development of hammertoes.
Last Medically Reviewed on April 29, 2026.