Flexor Hallucis Longus Tendinopathy

What is flexor hallucis longus tendinopathy?

The flexor hallucis longus is a muscle in the lower leg that runs behind the bony bump on the inside of the ankle and continues along the inside of the foot. Its primary role is to bend the big toe, providing power during walking, running, and pushing off the foot. Flexor hallucis longus tendinopathy occurs when the tendon becomes irritated or swollen, often due to overuse or repetitive stress. Physiotherapy is an effective treatment for flexor hallucis longus tendinopathy, helping to reduce pain, restore mobility, and improve tendon strength and function.

How does flexor hallucis longus tendinopathy happen?

Flexor hallucis longus tendinopathy is most often the result of overuse of the flexor hallucis longus tendon. Repeated strain on the muscle and tendon can lead to the development of microscopic tears within the tendon fibers. In response to these small injuries, the body initiates an inflammatory process to begin repair. This inflammation within the tendon is what characterizes tendinopathy, leading to pain, stiffness, and reduced function if not managed appropriately.

What are the symptoms of flexor hallucis longus tendinopathy?

Flexor hallucis longus tendinopathy typically develops gradually, causing pain beneath the bony bump on the inside of the ankle and along the inner side of the foot. Early symptoms may ease with movement, massage, or applying heat to the area, which is why they are often overlooked. However, if activity continues without treatment, the condition tends to progress, leading to worsening tendon pain that may eventually be constant. Common symptoms may include:

  • Pain along the inside of the ankle and foot, especially during activity
  • Stiffness in the ankle, particularly in the morning or after rest
  • Swelling or tenderness around the tendon
  • Pain when pushing off the big toe during walking or running
  • Difficulty or discomfort when rising onto the toes or performing calf raises

What should I do if I have flexor hallucis longus tendinopathy?

Flexor hallucis longus tendinopathy does not usually improve on its own if the underlying cause is not addressed and exercise continues. If you suspect this condition, it is important to arrange a physiotherapy appointment as soon as possible. While waiting for your appointment, you can begin initial treatment by resting your leg and applying ice to the inside of your ankle. Use a bag of frozen peas or crushed ice wrapped in a damp cloth, and apply it for 15–20 minutes every couple of hours to help reduce pain and inflammation.

What shouldn’t I do if I have flexor hallucis longus tendinopathy?

If you have or suspect flexor hallucis longus tendinopathy, it is important not to ignore the problem or continue exercising through the pain. Although your symptoms may temporarily ease during activity, this can mask the injury and lead to further damage of the flexor hallucis longus tendon, ultimately worsening the condition and delaying your recovery.

Physiotherapy treatment for flexor hallucis longus tendinopathy.

Physiotherapy is a key part of treating flexor hallucis longus tendinopathy. Your physiotherapist will begin by confirming the diagnosis and assessing the severity of your injury. Based on this assessment, a tailored treatment plan will be created to support your recovery. Treatment may involve:

  • Rest and activity modification – reducing or avoiding activities that aggravate the tendon.
  • Ice therapy – applying ice to manage pain and inflammation.
  • Manual therapy – soft tissue massage and joint mobilisations to relieve tension and improve mobility.
  • Stretching exercises – gentle stretches to improve flexibility of the calf and foot muscles.
  • Strengthening exercises – progressive exercises to build tendon and muscle strength.
  • Biomechanical assessment – evaluating foot posture and gait, with orthotics prescribed if necessary.
  • Education and advice – guidance on safe return to exercise and long-term tendon care.

Could there be any long-term effects from flexor hallucis longus tendinopathy?

Flexor hallucis longus tendinopathy generally does not lead to long-term effects if it is diagnosed early and managed appropriately with rest, physiotherapy, and a structured rehabilitation programme. Prompt treatment helps ensure full recovery and allows you to return safely to your normal activities.

To arrange an appointment, please call +65 81535374 or visit acephysiosports.com.

Get treated today!

We have immediate appointments available today. Contact us to make an appointment.

Find out more »

We are open...

Our clinics are open:
Mon - Fri: 8am - 8pm
Sat: 8am - 4pm
Sun: On Appointment Basis

Find your nearest clinic

Acephysio Sports have clinics located throughout the Singapore.

Find out more »