31/05/2026
Amnesia is memory loss that can be temporary or permanent. Common causes include:
Brain Injury or Physical Damage
Head trauma (car accidents, falls, sports injuries)
Stroke
Brain surgery
Tumors affecting memory areas
Neurological Diseases
Alzheimer’s disease
Dementia
Epilepsy
Brain infections such as encephalitis or meningitis
Psychological Causes
Severe emotional stress or trauma
Post-traumatic stress disorder
Dissociative amnesia (memory loss linked to psychological trauma)
Substance Use
Alcohol abuse (especially long-term)
Drug misuse or overdose
Certain medications, including sedatives and some sleeping pills
Nutritional Deficiencies
Vitamin B1 (thiamine) deficiency, which can lead to Wernicke-Korsakoff syndrome
Lack of Oxygen to the Brain
Cardiac arrest
Severe respiratory failure
Carbon monoxide poisoning
Infections and Illnesses
High fever
Severe infections affecting the brain
Autoimmune disorders
Other Causes
Extreme sleep deprivation
Seizures
Electroconvulsive therapy (ECT) in some cases
Aging-related memory decline
There are different types of amnesia:
Retrograde amnesia: loss of past memories
Anterograde amnesia: inability to form new memories
Transient global amnesia: sudden temporary memory loss
If someone develops sudden or unexplained amnesia, it should be treated as a medical emergency because causes like stroke or head injury may require immediate care.
Follow for more health updates Doctor Cardio health Doc Sadeeq Dr. Oxford1 Aproko Doctor