What’s plantar fibromatosis?

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Plantar fibromatosis causes collagen to form bumps on the foot, which can be painful but often have no symptoms. It is not known why it develops, but it is usually not cancerous. Surgery may be an option for painful nodules, but non-invasive treatments such as orthopedic pads and stretching can also help.

Plantar fibromatosis is a condition in which collagen, or excess fibrous tissue, forms bumps on the ball of the foot. The nodules can become painful, but many times a person may not experience any symptoms. It is not known why a person develops this condition, but there are some theories. What is clear is that this condition is usually not cancerous and may not need treatment. When the nodules cause increased pain, however, surgery may be a treatment option.

Plantar fibromatosis is thought to be caused by the body overcompensating for healing of small tears in the plantar fascia, the structure that maintains the arch of the foot. If so, the excess collagen can build up and cause lumps. Other suspected causes include genetics. For example, those of Northern European descent may be more likely to develop this condition. Additionally, some medications, such as those used to lower high blood pressure, can also contribute to the development of these nodules.

The development of nodules associated with plantar fibromatosis doesn’t always become a serious problem. For many, these nodules may not be a problem. The nodules can stay the same size for a long time, or they can grow rapidly in a short period of time. However, they are not cancerous and do not spread to other parts of the body. While usually not painful, there are times when the lumps can cause a person pain.

If there is pain associated with plantar fibromatosis, several treatment options may be available. Non-invasive procedures may be a better choice than surgical ones. One surgical option is the removal of the nodules; however, they often reappear. Another surgical option is to remove part of the plantar fascia along with the nodules. This procedure can reduce the chance of the lumps coming back, but it can also lead to a painful scar and the development of other foot problems.

For plantar fibromatosis nodules that are not excessively painful, other treatment methods may be used. Wearing an orthopedic pad in your shoe can help keep pressure off the lump and reduce pain. Also, stretching the plantar fascia ligament with a night splint can help reduce the size of the nodules. Cortisone injections may also be used to help shrink the lumps and reduce pain. There is also a topical gel available that can help reduce the size of the nodules.




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