Signs & Symptoms

HEAD, NECK, THROAT & SPINE

Scroll down to see some of the signs & symptoms that a vitamin B12 deficiency can cause in the HEAD, NECK, THROAT & SPINE areas of the body.

To see the possible signs & symptoms of other areas of the body just click on the appropriate button on the diagram below.

Symptoms underlined and highlighted in the same colour as their body area can be clicked on to see documented and peer reviewed sources of information.

Because neurological symptoms of vitamin B12 deficiency can cause irreversible damage if left untreated, we have also indicated which of the symptoms are neurological by putting this (N) next to them.

HEAD, NECK, THROAT & SPINE

Neuropsychiatric

Mood & Emotional Changes
  • Anxiety (N)

  • Apathy (N)

  • Depression (N)

  • Insomnia/Sleep Disturbances (N)

  • Irritability (N)

  • Postnatal Depression (N)

  • Suicidal Ideation (N)

Psychiatric Changes
Cognitive Changes

Hair

Textural Changes
  • Oily/dry brittle hair

  • Limp/lifeless hair

Colour Changes
  • Premature greying

Hair Loss
  • Thinning

  • Alopecia

Human body outline.png

Musculoskeletal

Spinal Damage

Pain

Neurological
Headaches

Haematological/Vascular

Cerebrovascular Accident (CVA)

Sensory

Altered Sensation
  • Burning/Cold Sensations (N)

  • Creepy Crawly Sensations on Skin (N)

  • Dizziness/Light Headed (N)

  • Vertigo (N)

  • Vibrating Sensations (N)

Auditory Changes
  • Auditory Hallucination (N)

  • Hearing Loss

  • Tinnitus (N)

Optical Changes
  • Blepharospasm (twitching) (N)

  • Dry/Watery Eyes (N)

  • Light Sensitivity (N)

  • Optic Neuropathy (N)

  • Visual Acuity Reduction (N)

Paresthesia
  • Tingling Sensation (N)

  • Numbness (N)

Chemosensory Changes

Movement

Movement Disorders
  • Co-ordination Issues (N)

  • Dysphagia/Swallowing Difficulties (N)

  • Muscular Stiffness/Tightness (with or without pain)

  • Musculoskeletal Weakness (with or without pain) (N)

  • Myoclonus/Involuntary Movements (N)

  • Reflex Abnormalities (N)

  • Seizures (N)

  • Tremor (N)

Mouth

Oral Changes