A plantar fibroma typically appears as a noticeable, firm lump or nodule on the sole of your foot, specifically within the arch. It might feel like a small, embedded object under your skin.
When observed, a plantar fibroma can resemble a tiny marble, usually measuring less than an inch across. The skin over the fibroma may curve outwards or form a slight bulge, creating an unusual contour on the arch of your foot. Unlike some other foot conditions, the skin itself usually remains unaffected in terms of color or texture, although the underlying lump is distinctly palpable and visible.
Key Visual Characteristics
- Lump or Nodule: The most prominent feature is a distinct, firm mass.
- Location: Almost always found on the arch of the foot.
- Size: Often described as being the size of a tiny marble, typically less than an inch (about 2.5 cm) in diameter.
- Appearance on Skin: The skin overlying the fibroma may bulge or curve outwards around the mass, creating an abnormal shape on the foot's arch.
- Feel: It can feel as if a small object is embedded just beneath the skin.
- Color/Texture of Skin: The skin itself usually retains its normal color and texture, without redness, scaling, or other outward signs of irritation, unless it's been subjected to friction or pressure.
Understanding its Location
Plantar fibromas form within the plantar fascia, a thick band of tissue that runs along the bottom of your foot from your heel to your toes. This explains why they are exclusively found on the sole, particularly in the arch where this fascia is prominent. Because of their location, they can sometimes cause discomfort or pain, especially when walking or standing, as pressure is applied to the lump.
For more detailed information on plantar fibromas, including causes, symptoms, and treatment options, you can consult reliable health resources such as the Cleveland Clinic.
