Muscle weakness and wasting may be caused by a variety of conditions both systemic and those confined to the muscles only.

Causes

Localised

  • Peripheral nerve lesions

    • Peripheral nerve compression

    • Motor neuropathy

    • Peripheral nerve transection

  • Disuse atrophy

  • Anterior horn cell lesions

    • Previous poliomyelitis • (common in developing countries)

Generalised

Nutritional deficiency

  • Vitamin D deficiency

Systemic disease

  • Malignancy

  • Cardiac and/or respiratory cachexia

  • Thyrotoxicosis

  • Sarcoidosis

  • Guillain–Barré syndrome

  • Cushing’s disease

  • Addison’s disease

You're Reading a Preview

Become a Clinical Tree membership for Full access and enjoy Unlimited articles

Become membership

If you are a member. Log in here