Charcot-Marie-Tooth Disease
Charcot-Marie-Tooth disease is the most common inherited disorder of the peripheral nerves. At Modern Physio we focus on understanding the root-cause of your problem & personalizing your treatment for lasting results.
Understanding Charcot-Marie-Tooth Disease
Charcot-Marie-Tooth disease is the most common inherited disorder of the peripheral nerves. Despite the name it involves no teeth, being named after the three physicians who described it. It affects the nerves supplying the limbs, producing slowly progressive weakness and wasting that begins in the feet and lower legs and later involves the hands, together with reduced sensation. The characteristic picture includes high-arched feet, clawed toes, foot drop, frequent ankle sprains, thin lower legs, and difficulty with fine hand tasks such as buttons and keys. It usually appears in childhood or adolescence but can present later, and it progresses slowly over decades rather than rapidly. There is no drug treatment that alters the underlying condition, which means conservative management, physiotherapy and orthotics, is the mainstay of care rather than an adjunct to something else. The honest position on evidence is that it is thin: reviews note that despite conservative treatment being the only treatment available, there is limited scientific evidence for specific rehabilitation protocols. Small studies do exist and inform practice, including home exercise programmes reporting improvements in muscle strength and in the time taken to perform daily activities. One useful and reassuring finding is that research testing the overwork weakness hypothesis in the commonest genetic subtype did not support it, meaning exercise does not appear to carry the harm it does in conditions like post-polio syndrome. At Modern Physio in Vaishali Nagar, Jaipur, we focus on orthotics, balance, endurance, hand function and foot care.
Common Symptoms
- Weakness and wasting starting in the feet and lower legs, giving a characteristically thin lower leg shape
- Foot drop, with the toes catching when walking and a high-stepping gait to compensate
- High-arched feet and clawed or hammer toes
- Frequent ankle sprains and a sense of unstable ankles
- Reduced sensation in the feet and later the hands, including reduced awareness of temperature and injury
- Difficulty with fine hand tasks such as buttons, zips, keys and writing as the condition progresses
- Balance difficulty, particularly in the dark or on uneven ground
- Fatigue from the extra effort of walking with weak muscles and altered mechanics
- Muscle cramps and aching in the legs
- Calluses, pressure areas or unnoticed wounds on the feet because of reduced sensation
- Slow progression over years, with function changing gradually rather than suddenly
How Common Is It?
Charcot-Marie-Tooth disease is described as the most common inherited neuromuscular disorder, although it remains uncommon in absolute terms. No India-specific prevalence data was identified in our review of the literature. It typically presents in childhood or adolescence, though milder forms can be recognised much later, sometimes only when a family member is diagnosed. Progression is slow, measured over decades, and severity varies considerably between individuals and between genetic subtypes, including within the same family.
Causes & Risk Factors
- Inherited mutations affecting the structure or function of peripheral nerves, with several genetic subtypes
- A family history of the condition in many cases, although new mutations occur and family history is not always present
- Different inheritance patterns depending on subtype, which is why genetic counselling is useful for families
- It is not caused by diet, injury, activity level or anything the person or family did
- Foot deformity and muscle imbalance, which are consequences of the nerve involvement and in turn drive further mechanical problems
Our Diagnosis Process
- Neurological diagnosis, supported by nerve conduction studies and, where appropriate, genetic testing arranged by your neurologist
- Family history assessment, since the condition is inherited and other family members may be affected
- Physiotherapy assessment of muscle strength in the legs and hands, mapped systematically so slow change can be detected over time
- Assessment of sensation in the feet and hands, which guides foot care advice
- Foot and ankle assessment, including arch height, toe position, flexibility of deformity and skin condition
- Gait analysis, particularly looking for foot drop, instability and compensatory patterns
- Balance and falls risk assessment
- Assessment of hand function and its impact on daily tasks, work and study
Our Treatment Approach
- Orthotic assessment and provision, particularly ankle-foot orthoses for foot drop, which is one of the highest-value interventions in this condition
- Footwear advice and, where indicated, custom insoles to accommodate high-arched feet and redistribute pressure
- Moderate-intensity strengthening for the legs and hips, which research in this condition supports as safe
- Endurance and aerobic conditioning, which has been studied in this population with encouraging results
- Balance and proprioception training to reduce falls, which are common given the combination of weakness and reduced sensation
- Stretching and splinting to limit progression of foot and ankle deformity and maintain what flexibility remains
- Hand function work and, where useful, adaptive equipment for buttons, keys, writing and kitchen tasks
- Foot care education, which matters because reduced sensation means injuries and pressure sores can go unnoticed
- Energy conservation advice, since walking with this condition costs more effort than it does for others
- Coordination with orthopaedic services where surgical correction of foot deformity is being considered
Key Highlights
Orthotic and footwear assessment, which often makes the biggest single difference to walking
Exercise delivered with confidence, since research has not supported the overwork weakness concern in this condition
Foot care education for skin protected by reduced sensation
Long-term monitoring appropriate to a slowly progressive condition
Recovery & Prevention Tips
- Get properly assessed for an ankle-foot orthosis if you have foot drop, since it reduces trips and makes walking noticeably less tiring
- Check your feet daily, because reduced sensation means blisters, cuts and pressure areas can develop unnoticed
- Invest in well-fitting footwear with a deep toe box, as high-arched feet and clawed toes are easily irritated by standard shoes
- Keep exercising, since research in this condition has not supported the concern that exercise causes further weakness
- Work on balance deliberately, because weakness and reduced sensation combine to make falls more likely than strength alone suggests
- Stretch the calf and ankle regularly to slow the development of fixed deformity
- Use adaptive tools for fiddly hand tasks rather than struggling, as saving effort for what matters is sensible
- Be careful with heat and cold on the feet, since reduced sensation makes burns and injuries easier to sustain unnoticed
- Ask about genetic counselling if you are planning a family, since inheritance patterns vary by subtype
- Have your feet reviewed periodically even when things feel stable, because deformity progresses gradually and is easier to manage early
Products That Can Help
Supports and equipment we fit at the clinic that patients with this condition commonly use alongside treatment, never instead of it.
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Evidence & Sources
A review of rehabilitation management in Charcot-Marie-Tooth disease notes that although conservative intervention is the only treatment available for the disease, there is limited scientific evidence for rehabilitation treatment, while describing small studies including a home exercise programme that improved muscle strength and reduced the time taken to perform daily activities.
Rehabilitation management of Charcot-Marie-Tooth disease (PMC)A study specifically testing the overwork weakness hypothesis in the commonest genetic subtype of Charcot-Marie-Tooth disease reported that the data did not support the hypothesis or a consequent harmful effect of exercise in these patients.
Overwork weakness in Charcot-Marie-Tooth disease type 1AFrequently Asked Questions
Is exercise safe, or will it wear out my nerves faster?
This is a reasonable question, because in some neurological conditions such as post-polio syndrome, exercising to exhaustion genuinely does cause harm. The reassuring news is that research specifically testing that concern in the commonest genetic subtype of Charcot-Marie-Tooth disease did not support it, finding no evidence for a harmful effect of exercise. Moderate strengthening and endurance work are therefore appropriate, and small studies have reported improvements in strength and in the speed of daily activities. We still build programmes sensibly rather than aggressively, but you do not need to avoid exercise out of fear of accelerating the condition.
Will an ankle-foot orthosis help, or will it weaken my legs?
For most people with foot drop it helps considerably, and it is often the single most valuable intervention we arrange. Foot drop means the muscles lifting the front of the foot are too weak to clear the ground, so you compensate by lifting the whole leg higher, which is tiring, unstable and a common cause of trips. An orthosis addresses that directly. The concern about weakening is understandable, but the muscles in question are weak because of nerve damage that exercise cannot repair, not because of disuse, and in practice most people walk further and more safely with appropriate support.
How fast does this get worse?
Slowly, which is one of the more important things to understand at diagnosis. Charcot-Marie-Tooth disease progresses over decades rather than months, and many people maintain independent walking throughout their lives, though often with orthotic support. Severity varies considerably between genetic subtypes and even between members of the same family, so someone else's course is not a reliable prediction of yours. Because change is gradual, it is easy to miss, which is why periodic reassessment with objective measurements is useful: it shows what is actually changing rather than relying on impression.
Why does foot care matter so much?
Because reduced sensation removes your early warning system. Normally a rubbing shoe or a small cut hurts, and you deal with it immediately. With reduced sensation in the feet, a blister, cut or pressure area can develop and worsen without you noticing, and high-arched feet with clawed toes concentrate pressure on small areas, which makes skin problems more likely in the first place. Daily visual checking of the feet, well-fitting footwear with a deep toe box, and prompt attention to any skin change prevent problems that are far harder to treat once established.
Should my children be tested?
That is a conversation for a neurologist or genetic counsellor rather than a physiotherapist, and it is worth having properly. Inheritance patterns differ between genetic subtypes, so the risk to children depends on which form you have, which is why genetic testing of the affected person is often the starting point. Some families choose testing, others prefer to watch for symptoms and act if they appear. What we can say from a rehabilitation standpoint is that if a child does develop symptoms, early attention to footwear, orthotics, balance and stretching genuinely helps, so recognising it early is useful.
Will I need surgery on my feet?
Some people do, and it is worth understanding as a possibility rather than a certainty. Where foot deformity becomes fixed and causes pain, skin breakdown or significant instability that cannot be managed with orthotics and footwear, orthopaedic surgery can improve foot position and function. That decision belongs to an orthopaedic surgeon familiar with neuromuscular foot deformity. What rehabilitation contributes beforehand is maintaining flexibility for as long as possible, which can delay or reduce the extent of surgery, and afterwards it supports recovery and helps you get the benefit of the correction.
Why are my hands affected as well as my feet?
Because the condition affects the longest nerves in the body first, and progresses to shorter ones over time. The nerves running to the feet are the longest, which is why symptoms start there, and the nerves to the hands are next. Hand involvement typically appears later than foot involvement and tends to affect fine tasks first, such as buttons, zips, keys and handwriting, since these need precise control of small muscles. Hand function work and adaptive equipment can make a real difference to daily independence, and it is worth addressing rather than quietly working around.
Is there any treatment that stops the disease itself?
Not currently, and we would rather be direct than encouraging. There is no drug that halts or reverses Charcot-Marie-Tooth disease, which is why conservative management is described in the literature as the only treatment available rather than as an adjunct. Research into the genetics is active and the picture may change. In the meantime, what genuinely helps is orthotic support, maintaining strength and endurance, protecting foot skin, preventing falls, and managing deformity, all of which influence function and quality of life substantially even though they do not touch the underlying genetics.
Medically Reviewed
This content was reviewed for medical accuracy by Dr. Surabhi Bansal, BPT, MPT (Ortho) with 14+ years of clinical experience.
At Modern Physio, all medical content undergoes a thorough review process to ensure accuracy and alignment with current physiotherapy standards. Our content is created to educate and should not replace professional medical advice. Learn more about our review process.
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Balance, gait and functional training for an inherited peripheral nerve condition, with orthotic assessment.
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Moderate strengthening and endurance conditioning, supported by research in this condition.
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Systematic strength and sensation mapping, foot assessment and foot care education.
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