Tuesday, 02 August 2022 00:00

What Is Sinus Tarsi Syndrome?

Pain on the outside of the foot between the ankle and the heel bone is usually caused by a condition known as sinus tarsi syndrome (STS). The sinus tarsi is an area within the hindfoot, between the talus and calcaneus bones, that contains ligaments, nerves, muscles, blood vessels, and fat. The pain felt in this area is generally caused by an injury to the ligament, such as a sprained ankle. It becomes a syndrome, however, when it is accompanied by several other factors. Among them are chronic pain felt at the front and side of the ankle, a feeling of instability, and difficulty walking on uneven surfaces (sand, gravel). Swelling, tenderness, and bruising are also present with sinus tarsi syndrome. People with flat feet are more likely to incur STS. It may also be the result of frequent ankle sprains. Ballet dancing, sitting with your feet tucked under you, and pitching baseballs or softballs can cause the syndrome because of repetitive actions. Symptoms of sinus tarsi syndrome generally develop over time. In order to determine whether you may have STS, please consult a podiatrist for an exam, diagnosis, and treatment options.

Ankle pain can be caused by a number of problems and may be potentially serious. If you have ankle pain, consult with Dr. Rouder from S.I. Podiatry. Our doctor will assess your condition and provide you with quality foot and ankle treatment.

Ankle pain is any condition that causes pain in the ankle. Due to the fact that the ankle consists of tendons, muscles, bones, and ligaments, ankle pain can come from a number of different conditions.


The most common causes of ankle pain include:

  • Types of arthritis (rheumatoid, osteoarthritis, and gout)
  • Ankle sprains
  • Broken ankles
  • Achilles tendinitis
  • Achilles tendon rupture
  • Stress fractures
  • Bursitis
  • Tarsal tunnel syndrome
  • Plantar fasciitis


Symptoms of ankle injury vary based upon the condition. Pain may include general pain and discomfort, swelling, aching, redness, bruising, burning or stabbing sensations, and/or loss of sensation.


Due to the wide variety of potential causes of ankle pain, podiatrists will utilize a number of different methods to properly diagnose ankle pain. This can include asking for personal and family medical histories and of any recent injuries. Further diagnosis may include sensation tests, a physical examination, and potentially x-rays or other imaging tests.


Just as the range of causes varies widely, so do treatments. Some more common treatments are rest, ice packs, keeping pressure off the foot, orthotics and braces, medication for inflammation and pain, and surgery.

If you have any questions, please feel free to contact our office located in Staten Island, NY . We offer the newest diagnostic and treatment technologies for all your foot care needs.


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