Plantar Cysts: Causes, Symptoms, and Treatment Options - Rehabilitation

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Plantar cyst


Last year, I noticed a "lump" in the center of the sole of my right foot (in the arch area).
Sometimes it hurts a little when touched, but it doesn't affect my walking.
This month, I discovered that a "lump" has also appeared in the center of the sole of my left foot (in the arch area).
Sometimes it hurts a little when touched or while walking (it feels somewhat tight).
Do you know what this could be? What is a plantar cyst?

Gu Dawei, 50~59 year old female. Ask Date: 2016/03/25

Dr. Zhou Jianwen reply Rehabilitation


It is suspected to be an inflamed ganglion cyst; it is recommended to follow up with the rehabilitation department for treatment.

Reply Date: 2016/03/25

More Info


Plantar cysts, also known as plantar fibromas or plantar fibromatosis, are benign growths that typically develop on the plantar fascia, the thick band of tissue that runs across the bottom of the foot. These cysts can manifest as firm lumps or nodules, often located in the arch of the foot, and they may vary in size. While they are generally non-cancerous, they can cause discomfort or pain, especially when walking or standing for extended periods.


Causes of Plantar Cysts
The exact cause of plantar cysts is not fully understood, but several factors may contribute to their development:
1. Genetic Predisposition: Some individuals may have a hereditary tendency to develop plantar fibromas.

2. Trauma or Injury: Repeated trauma or injury to the foot, such as from sports or high-impact activities, may trigger the formation of these cysts.

3. Underlying Conditions: Certain medical conditions, such as diabetes or liver disease, may increase the likelihood of developing plantar cysts.

4. Footwear: Wearing ill-fitting shoes or high heels can contribute to the development of these growths due to increased pressure on the foot.


Symptoms of Plantar Cysts
The symptoms associated with plantar cysts can vary from person to person. Common symptoms include:
- Lump or Nodule: A noticeable lump in the arch of the foot that may feel firm to the touch.

- Pain or Discomfort: Some individuals may experience pain, especially when pressure is applied to the cyst while walking or standing.

- Tightness or Tension: A feeling of tightness in the foot, particularly in the area surrounding the cyst.

- Limited Mobility: In some cases, the presence of a cyst may lead to discomfort that affects mobility or the ability to engage in physical activities.


Diagnosis
To diagnose a plantar cyst, a healthcare provider will typically perform a physical examination of the foot. They may also inquire about the patient's medical history and any symptoms experienced. In some cases, imaging studies such as ultrasound or MRI may be recommended to assess the cyst's characteristics and rule out other conditions.


Treatment Options
Treatment for plantar cysts depends on the severity of symptoms and the impact on the individual's daily life. Options may include:
1. Observation: If the cyst is asymptomatic and not causing significant discomfort, a "watchful waiting" approach may be taken.

2. Orthotic Devices: Custom orthotics or shoe inserts can help alleviate pressure on the cyst and provide support to the foot.

3. Corticosteroid Injections: In some cases, corticosteroid injections may be administered to reduce inflammation and pain associated with the cyst.

4. Surgical Removal: If the cyst is painful, growing, or causing significant discomfort, surgical excision may be considered. This procedure involves removing the cyst and any surrounding tissue to prevent recurrence.


Conclusion
In summary, plantar cysts are benign growths that can develop on the bottom of the foot, often causing discomfort or pain. While they are generally not a cause for concern, it is essential to monitor their symptoms and seek medical advice if they become bothersome. A healthcare provider can provide a proper diagnosis and recommend appropriate treatment options based on the individual's specific situation. If you are experiencing pain or discomfort in your feet, it is advisable to consult a healthcare professional for an accurate diagnosis and tailored treatment plan.

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