Protruding bone on the top of the foot: useful information
Have you noticed a protruding bone on the top of your foot? Besides being uncomfortable and affecting your mobility, this condition can be painful.
By Dr. Luigi Manzi·Updated on
Have you noticed a protruding bone on the top of your foot and is it alarming? Besides being uncomfortable and affecting your mobility, this condition can be painful. Let's try to understand what it is and what causes this deformity.
The presence of a bone protruding from the top of the foot is often quite noticeable. This protrusion can vary in size and shape and can have various causes. These conditions can be more or less simple to treat.
Possible causes of a protruding bone on the back of the foot include the following:
- Some people are born with a congenital deformity that causes an abnormality in the bone structure of the foot.
- Fractures, sprains, or other injuries can cause excess bone to form on the top of the foot.
- Rheumatoid arthritis, osteoarthritis, or other joint conditions can contribute to the formation of bony bumps.
- The development of exostoses, which is a benign bony growth that can develop in any bone in the body, may be the cause of a protruding bone on the top of the foot.
- Haglund's disease, a condition characterized by painful inflammation triggered by a bony prominence on the heel.
- Engaging in strenuous sports or jobs that require prolonged standing can place excessive stress on the bones of the foot.
- Wearing shoes that are too tight, with high heels or with rigid soles, puts excessive pressure on the foot, causing the bone to protrude.
What are the symptoms?

Those with a protruding bone on the instep experience swelling, redness on the top of the foot, and other symptoms related to pain and inflammation. This worsens with physical activity or when wearing particularly tight shoes.
In more severe cases, you may have difficulty walking due to the bump on the top of your foot.
Haglund's disease: a specific case

Haglund's disease is a condition that affects the back of the heel, causing pain and a bony protrusion. It is often caused by wearing ill-fitting footwear or by sports that repeatedly stress the Achilles tendon.
The most common symptoms of Haglund's disease include:
- Pain and swelling in the heel, especially after physical activity or sitting for long periods of time.
- Stiffness and difficulty moving the ankle.
- Redness and heat on the heel.
- Sensitivity to touch on the back of the heel.
- Difficulty wearing closed shoes.
The patient often comes to the clinic after having undergone an X-ray which highlights the appearance of the exostosis at the insertion point of the tendon.
Protruding bone on the back of the foot: the specialist's diagnosis

However, to make a diagnosis, a specialist examination is essential. The specialist, simply by examining the patient's bare foot, can reach a diagnosis.
To decide on the patient's therapeutic path, the doctor uses an X-ray of the foot under load, as well as other tests such as ultrasound, magnetic resonance imaging (MRI) and computed tomography (CT).
Treatment depends on the severity of symptoms and the underlying cause.
- Conservative treatments:
- Rest
- Ice
- Anti-inflammatory drugs
- Custom insoles
- Physiotherapy
- Surgical treatment:
- Removal of excess bone
- Osteotomy
When to see a doctor

If you notice a bony bump on the top of your foot and experience pain, it's important to consult a doctor or podiatrist. Early diagnosis and proper treatment can prevent complications and improve your quality of life.
Remember: every case is unique, and the most appropriate treatment depends on your specific circumstances. Don't hesitate to consult your doctor to find the best solution for you.
If a protruding bone on the top of your foot is causing you discomfort and pain, it's essential to seek professional help. Book a consultation with Dr. Luigi Manzi now for an accurate diagnosis and a personalized treatment plan to relieve instep pain with SmartHallux.
