Dermatofibromas are benign growths that are usually small and found on the skin. Originating from an overgrowth of cells in the skin's dermis layer, they're typically reddish or brown in colour. It's not uncommon for individuals with dermatofibromas to discover multiple growths on their body.

Key Highlights:

  • Dermatofibromas are always harmless and non-cancerous.
  • They often manifest after skin trauma, like insect bites or cuts.
  • The growths are mainly reddish or brown, with a tendency for their colour to evolve over time.
  • Common locations include the legs, but they can appear anywhere on the body.
  • Sizes range between 3-10 millimetres and can sometimes be itchy.

Causes of Dermatofibromas

The precise cause of dermatofibromas remains uncertain. However, in many instances, they appear after some form of skin trauma, such as an insect bite or a cut.

Symptoms of Dermatofibromas

While dermatofibromas generally display few symptoms, be vigilant for:

  • Rapid size growth
  • Lumps that bleed when injured

If you observe abnormal growth characteristics, seek medical advice promptly.

Diagnosis Process

Upon consultation, the doctor will discuss the patient’s symptoms and review their medical history. Typically, a visual inspection suffices for diagnosis. In uncertain cases, the lump may be removed under local anaesthetic for closer examination.

Treatment Options for Dermatofibromas

While dermatofibromas don't dissipate naturally, treatments are available, especially if they cause discomfort, impede daily activities, or for aesthetic purposes:

  1. Surgical Excision: After administering a local anaesthetic, the lump is excised. Given the deep-rooted growth of dermatofibromas, this approach often results in scarring.
  2. Freezing Method: Liquid nitrogen can be applied to freeze and subsequently destroy the growth. This technique usually leaves a pale scar, and there's a possibility of the nodule reappearing after a few years.

Prevention Measures

Currently, no known methods can prevent the onset of dermatofibromas.