Plantar Fibromas

Plantar Fibromas Overview

Plantar fibromas are benign lumps that form within the plantar fascia, the thick band of connective tissue running along the arch of the foot. These nodules can be felt as firm, rubbery swellings in the sole, usually near the middle of the arch. They may remain small and painless or grow and cause discomfort, especially when walking or wearing shoes.

Plantar fibromas are part of a broader condition known as plantar fibromatosis (also called Ledderhose disease).

Plantar Fibromas Symptoms and Diagnosis

Symptoms typically include:

• A firm, immobile lump in the arch of the foot

• Pain when walking or standing barefoot

• Discomfort or pressure when wearing shoes

• Occasionally, the nodule may increase in size or number over time

Diagnosis is made on clinical examination, with confirmation from ultrasound or MRI to assess the size and extent of the fibroma and rule out other causes of foot lumps.

Plantar Fibromas Causes

• The exact cause is not fully understood

• May be linked to genetic predisposition

• More common in people with Dupuytren’s contracture or Peyronie’s disease

• Repetitive trauma or micro-injury to the fascia

• Possible association with certain medications (e.g. anti-seizure drugs)

Plantar Fibromas Treatment and Prevention

In most cases, symptoms can be managed without surgery:

• Custom orthotics to offload pressure from the nodule

• Cushioned footwear with arch support

• Stretching and physiotherapy to reduce plantar fascia tension

• Topical treatments such as verapamil cream (limited evidence)

• Steroid injections may reduce pain but often don’t shrink the fibroma

Low-Dose Radiotherapy

In selected cases, localized low-dose radiotherapy may be considered. This can slow or stop the progression of nodules and reduce pain, especially in early or actively growing cases. It is most commonly used in specialist centres.

Prognosis and Monitoring

Plantar fibromas are usually slow-growing and non-cancerous, though they may persist or enlarge over time. Regular monitoring and supportive footwear are often sufficient to maintain comfort.

If symptoms change or become more severe, reassessment with your clinician is advised.