Symptoms

CMT often starts with foot problems (high arches, foot drop) and muscle weakness in the lower legs, later followed by hand involvement.

Where do symptoms appear?

CMT usually starts in the feet and lower legs and slowly spreads to the hands.

Feet & lower legs

  • Foot drop & tripping
  • High arches (pes cavus)
  • Hammer toes
  • Thinning calves

Hands & arms

  • Reduced grip strength
  • Fine-motor difficulty
  • Tingling
  • Reduced sensation

Neurological

  • Reduced reflexes
  • Balance problems
  • Fatigue
  • Sometimes nerve pain

Less frequent

  • Scoliosis
  • Hearing loss
  • Breathing weakness
  • Sleep apnoea

๐Ÿšจ Important early signs

CMT symptoms often appear gradually and can be subtle initially. Early recognition is crucial for appropriate management and prevention of complications.

Motor symptoms (movement)

๐Ÿฆถ Foot problems

  • High arches - Very elevated foot arch
  • Hammer toes - Curved/clawed toes
  • Foot drop - Difficulty lifting the foot
  • Distinctive gait - High-stepping walk
  • Instability - Frequent tripping

๐Ÿ’ช Muscle weakness

  • Calf muscles - Visible wasting
  • Forearm muscles - Loss of muscle mass
  • Small hand muscles - Fine motor problems
  • Distal to proximal progression - From extremities inward

๐Ÿคฒ Hand problems

  • Reduced fine motor skills - Buttoning, writing
  • Weakened grip - Holding objects
  • Quick fatigue - During manual activities
  • Clumsiness - Dropping objects

Sensory symptoms (sensation)

๐Ÿ” Loss of sensation

  • Numbness - Feet and hands like gloves/socks
  • Cold sensation - Especially in toes
  • Reduced temperature sensation - Risk of burns
  • Diminished touch sensation - Discrimination problems

โšก Tingling and pain

  • Tingling - Pins and needles sensations
  • Burning sensations - Especially at night
  • Cramps - In calves and feet
  • Neuropathic pain - Varies between individuals

๐Ÿฉบ Clinical signs

  • Absent/reduced reflexes - Especially Achilles
  • Impaired position sense - Balance problems
  • Reduced vibration sensation - Tuning fork test

Progression and variability

๐Ÿ“ˆ Symptom evolution

CMT is progressive, but the speed varies enormously between individuals. Some have mild symptoms throughout life, others develop more limitations. The type of CMT also influences progression.

๐Ÿ• Early onset (childhood)

  • Delayed motor development
  • Walking/running problems
  • Foot deformities
  • Often CMT1A

๐Ÿ•• Late onset (adulthood)

  • More subtle symptoms
  • Slower progression
  • Often CMT2
  • Sometimes late diagnosis

โš–๏ธ Gender differences

  • CMTX: Men more severely affected
  • Pregnancy: May temporarily worsen symptoms
  • Hormones: Possible influence on progression

When to see a doctor?

๐Ÿฅ Warning signals

Consult a doctor if you recognize several of these symptoms, especially if they are progressive or if there is a family history of neurological problems.

๐Ÿšฉ Persistent symptoms

  • Repeated tripping
  • Progressive weakness of feet/hands
  • Worsening numbness
  • Balance problems

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘งโ€๐Ÿ‘ฆ Family history

  • Parents/siblings with CMT
  • Family neurological problems
  • Foot deformities in family
  • Hereditary walking problems

๐Ÿ“‹ Consultation preparation

  • Note symptom progression
  • Gather family history
  • List functional limitations
  • Prepare your questions