A plantar fibroma is a non-cancerous growth that occurs on the bottom of your foot.
On the bottom of your foot, you have a thick band of tissue that connects your heel to your toes. This band of tissue is called the plantar fascia. Sometimes, a small growth can occur in this tissue. This is called a plantar fibroma.
If there are several lesions, especially if they are on the sole of your foot, then you have a different condition called plantar fibromatosis. This is also called Ledderhose disease.
A plantar fibroma is usually very small, less than an inch around. You can have one on just one foot or on both feet. If the growth is very small, you may not even notice it. It is only when it grows larger that you may feel pain. There is no exact cause pinpointed that leads to the development of a plantar fibroma. Since there is no known cause, it is not possible to prevent them from occurring. A plantar fibroma is always benign, or non-cancerous. However, your doctor may decide to do a biopsy on it just to be on the safe side.