Freiberg disease: a real bone problem, and the pain that sometimes outgrows it.

A small bone in the ball of the foot loses blood supply. The bone can recover. The nervous system does not always get the memo.

This page is about understanding the condition and the role the brain and nervous system can play in it. It is not a diagnosis. Your own clinicians know your case.

What Freiberg disease is

Freiberg disease, sometimes written Freiberg's infraction, is a form of osteonecrosis, meaning bone tissue dies because its blood supply is interrupted. It affects the rounded head of a metatarsal bone, usually the second one, which sits just behind the second toe. Repeated physical stress is thought to cause tiny fractures where the shaft of the bone meets the growth area, and those fractures interfere with circulation.

It most often appears in teenagers and young women, particularly those who are active or who wear shoes that load the forefoot. Symptoms are pain and stiffness in the ball of the foot, worse with walking, running or standing on tiptoe, sometimes with swelling or a limp. X-rays or MRI show the characteristic changes in the bone.

Early on, treatment is conservative: rest, supportive footwear, padding or orthotics, and limiting activity while the bone remodels. If the bone collapses and the joint becomes arthritic, surgery may be needed. This is a structural condition that needs structural care. The ATNS index agrees.

The neuroplastic contribution

Neuroplastic symptoms are real symptoms produced by learned pathways in the brain and nervous system, a sensitized alarm system, rather than by ongoing damage in the body. They are not imaginary and not 'all in your head'. They are reversible, because the brain can change.

The ATNS Index of Neuroplastic Symptoms states that Freiberg disease is not caused by neuroplastic symptoms. But it also notes that if the symptoms are not typical, or if the response to treatment is not as expected, assessing for neuroplastic symptoms is reasonable.

Here is how that happens in practice. A young person is told a bone in their foot is 'dying'. That is frightening language. They stop sport, watch every step, and brace for pain. Months pass. The bone stabilises on imaging, yet the foot still hurts, maybe more than before. By now the nervous system has had a long time to learn that this foot is dangerous and to amplify every signal from it. The bone has done its healing. The alarm has not switched off.

This learned process is central sensitization, and fear is its fuel. Our article on hurt versus harm explains why pain and damage stop matching once the nervous system is involved.

What the research shows

We should be honest: there is no research that studies neuroplastic or nociplastic pain specifically in Freiberg disease. It is a rare condition and the literature focuses on imaging and surgery. What we can offer is the structural evidence plus the closest general literature.

An evidence-based treatment algorithm for Freiberg disease summarises the condition as osteonecrosis of the metatarsal head, most common in adolescents and young women, with stress overloading the most accepted cause, and recommends nonoperative care first, with surgical options reserved for cases that do not respond. That paper also makes clear how limited the evidence is, with most data from small retrospective series and case reports.

A review of the diagnosis and treatment of Freiberg's infraction adds two useful points. The bone change is sometimes found by chance on an X-ray taken for another reason, which means the imaging finding and the pain do not always travel together. And outcomes of both nonoperative and operative care are reported as good to excellent, with most people returning to their previous activity. So when pain persists well beyond that expected course, it is fair to ask what else is keeping it going.

For the nervous-system side, we have to borrow from general pain research. A clinical terminology update on nociplastic pain and central sensitization explains how a sensitized central nervous system can maintain pain after tissue has healed, and names fear, catastrophizing and illness beliefs as perpetuating factors. The reasonable conclusion is the one the ATNS index draws: structural first, then look at the nervous system if the pain stops making sense.

Signs the brain may be part of the picture

• Imaging shows the bone has stabilised or healed, but the pain is unchanged or worse.
• Pain has spread beyond the ball of the foot, to the whole foot, the ankle or the other foot.
• The foot hurts at rest, in bed, or when you simply think about walking.
• Light touch, socks or bedsheets feel painful.
• Orthotics, rest, injections or surgery helped far less than your surgeon expected.
• Pain rises with stress, poor sleep or worry about the foot.

A solution that addresses it

If the nervous system has learned the pain, it can be retrained. Pain and symptom reprocessing is an approach built for this. It includes education about neuroplastic symptoms, somatic tracking (observing foot sensations with calm curiosity rather than alarm), reducing fear and threat, a graded return to walking and activity, emotional awareness and expression, and acceptance and commitment skills. Trained clinicians deliver it, and digital programs increasingly make it available at home. It fits alongside your podiatrist's or surgeon's plan rather than replacing it.

Cindra is a daily AI companion built around these approaches, with daily check-ins, short practices and plain-language lessons for people whose symptoms have a neuroplastic component. If your Freiberg pain has outlasted the bone's recovery, you can join the waitlist.

What to do next

First, make sure the bone is properly assessed and followed. Freiberg disease needs imaging, a clear stage, and a plan from a podiatrist, orthopaedic surgeon or sports physician. Follow that plan. New swelling, redness, warmth, fever, a sudden change in the shape of the foot, or an inability to bear weight need prompt medical review.

Second, once the bone is stable, ask a direct question: 'Does the bone explain how much pain I have now?' If the answer is uncertain, ask whether a neuroplastic pattern could be contributing.

Third, if it might, start learning and practising. Read about pacing so you can rebuild walking without flares, and use the exercise below daily.

This article is for general education and is not medical advice, and it does not diagnose or treat any condition. Persistent symptoms deserve a proper medical assessment to rule out disease or injury before a neuroplastic explanation is considered. If your symptoms are new, changing, or come with red-flag signs such as fever, unexplained weight loss, numbness or weakness, chest pain, or loss of bladder or bowel control, see a clinician promptly.