Symptom
Muscle weakness
A reduction in maximal voluntary muscle strength, reflecting impaired force generation. Possible causes are neuromuscular disorders (myasthenia gravis, peripheral neuropathy, muscular dystrophies), central motor pathways, brain injury/stroke, lifestyle factors (inactivity, age-related sarcopenia), electrolyte imbalance (K⁺/Ca²⁺/Na⁺), malnutrition (protein, vitamin D, Vitamin B12), and thyroid disease.
Also known as: Muscular weakness, Myasthenia, Muscular debility, Asthenia, Exhaustion, Fatigue, Weakness
Referencing diagnoses
- Acute intermittent porphyria
- Adrenal cortical carcinoma
- Celiac disease
- Chronic limb ischemia
- Cushings disease
- Cushing syndrome
- Dermatomyositis
- Discitis
- Electrical injury
- Hyperaldosteronism
- Hypercalcemia
- Hypermagnesemia
- Hyperparathyroidism
- Hyperthyroidism
- Hypoaldosteronism
- Hypocalcemia
- Hypokalemia
- Hypothyroidism
- Hypovolemia
- Lead toxicity
- Leporsy
- Lung cancer
- Metastatic bone tumors
- Migraine
- Multiple myeloma
- Multiple sclerosis
- Pituitary adenoma
- Polyarteritis nodosa
- Polyneuropathy
- Renal failure
- Schistosomiasis
- Sjogren syndrome
- Spinal stenosis
- Stroke
- Syndrome of inappropriate antidiuretic hormone secretion
- Systemic sclerosis
- Thyrotoxicosis
- Toxic nodular goiter
- Transient ischemic attack
- Wegener's granulomatosis
Note: Lists existing diagnoses in Diagnotize only.