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Fibroma

Fibromas are benign (non-cancerous) growths made up of fibrous or connective tissue. They can develop in the skin or deeper soft tissues and usually grow slowly. Many fibromas cause no symptoms and do not require treatment, but some may cause discomfort or functional problems depending on their size and location.

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Overview

What is a fibroma?

Fibromas are non-cancerous tumours that form from fibrous or connective tissue. Connective tissue supports and binds structures throughout the body, which is why fibromas can occur in many different areas.

Most fibromas remain localised, do not spread and grow slowly over time. They are often discovered incidentally during a skin examination or when a lump is noticed. 

dark fibroma on skin
Dark fibroma on skin

Are fibromas cancerous?

Fibromas are benign and do not develop into cancer. Rare malignant tumours of similar tissue, such as fibrosarcomas, are separate conditions. Because other lumps can appear similar, any new, growing or unusual lesion should be assessed by a healthcare professional.

Who can develop fibromas?

Fibromas can affect people of any age. The likelihood varies depending on the type of fibroma and its location. Some are more commonly identified in adulthood, while others may be influenced by genetic factors, repeated local irritation or hormonal changes.

Where do fibromas usually occur?

Fibromas may develop in areas such as:

  • The skin and tissues beneath the skin
  • The soles of the feet
  • The lining of the mouth
  • Bones (uncommon)
  • Certain organs, including the uterus

How are fibromas different from cysts or lipomas?

Fibromas are solid growths made of fibrous or connective tissue. In contrast, cysts are fluid-filled sacs, and lipomas are soft growths made of fatty tissue. Although these lumps can look similar, they differ in structure, feel and behaviour, which is why assessment by a healthcare professional is important for an accurate diagnosis.

Symptoms and Causes

What symptoms can fibromas cause?

Many fibromas do not cause symptoms. When symptoms do occur, they are usually related to the fibroma’s size or location and may include:

  • A firm or soft lump under or on the skin
  • Tenderness or discomfort if pressed or irritated
  • Pain or difficulty with movement, such as walking in plantar fibromas

Common types of fibromas

Fibromas affecting the skin and soft tissues include:

  • Dermatofibroma: Firm nodule on the skin, often on the legs
  • Skin tags (soft fibromas): Soft, flesh-coloured growths in skin folds
  • Plantar fibroma: Firm nodulesin the arch of the foot
  • Oral fibroma: Smooth nodule inside the mouth, often linked to repeated irritation
  • Ossifying fibroma: Rare benign tumour involving fibrous and bone tissue

What causes fibromas?

The exact cause of many fibromas is not known. They may develop due to localised overgrowth of fibrous tissue. In some cases, contributing factors include repeated minor trauma or irritation, genetic predisposition, or hormonal influences.

Can fibroma grow or change over time?

Most fibromas remain stable in size and appearance, but some may grow slowly over time. Rapid growth, sudden changes in shape or colour, pain, or ulceration are not typical and should be assessed to confirm the diagnosis and rule out other conditions.

Are fibroma linked to any underlying conditions?

Most fibromas occur on their own and are not associated with underlying illness. In rare cases, multiple fibromas may be linked to genetic conditions or local factors such as repeated irritation, but this is uncommon. A healthcare professional can advise if further assessment is needed.

Diagnosis and Tests

How are fibromas diagnosed?

Fibromas are usually diagnosed through a clinical examination. A healthcare professional will assess the size, shape, firmness, mobility and duration of the lump, along with any associated symptoms.

Are tests needed?

Further investigations are not always necessary. Imaging such as ultrasound or MRI may be recommended if a lesion is deep, atypical or causing symptoms. A biopsy may be advised if the diagnosis is uncertain or to exclude other conditions.

Management and Treatment

Do fibromas need treatment?

Many fibromas do not need treatment if they are small, painless and stable. In these cases, monitoring may be recommended.

When is treatment considered?

Treatment may be advised if a fibroma:

  • Causes pain or discomfort
  • Interferes with movement or daily activities
  • Becomes repeatedly irritated or inflamed
  • Changes in size or appearance
  • Causes cosmetic or psychological concern

How are fibromas treated?

Treatment depends on the fibroma’s type and location. Options may include observation, surgical removal under local anaesthetic, or selected treatments such as cryotherapy or laser therapy for certain skin lesions. Supportive measures, such as footwear modification, may help with plantar fibromas.

Attempting to remove fibromas at home is not recommended due to the risk of infection and scarring.

Can fibromas come back after removal?

Fibromas can recur after treatment, particularly if the growth is not completely removed. Complete surgical excision usually reduces the risk of recurrence, although the likelihood varies depending on the type and location of the fibroma.

Outlook/Prognosis

Fibromas are benign and usually do not cause serious health problems. Many remain unchanged over time. When treatment is required, outcomes are generally very good. Recurrence can occur in some cases, particularly if removal is incomplete.

Most fibromas do not require long-term monitoring if they are stable and symptom-free. Follow-up may be recommended if a fibroma changes, causes symptoms, or has been treated and needs review to check healing or recurrence.

Prevention

There is no reliable way to prevent fibromas from developing. Reducing repeated irritation to the skin may help in some cases.

When to seek medical advice

You should see a GP or specialist if a lump:

  • Is new or increasing in size
  • Becomes painful, inflamed or ulcerated
  • Changes in colour, size or texture
  • Interferes with daily activities
  • Causes concern or uncertainty

Early assessment helps ensure an accurate diagnosis and appropriate management.

Notice a Fibroma That Feels Unusual?

If you notice a fibroma changing in size, shape, or causing discomfort, don’t wait to have it assessed. Take a free online fibroma assessment with Aventus Clinic today for personalised guidance and support.