Strange Behaviour
Free Symptom Checker
with Physician-supervised AI
Reviewed By:
Weston S. Ferrer, MD (Psychiatry)
Weston Ferrer is a physician leader, psychiatrist, and clinical informaticist based in San Francisco. With nearly a decade of experience in academia and more recent immersion in industry, he has made significant contributions to the fields of digital health, health tech, and healthcare innovation. | As an Associate Professor at UCSF, Weston was involved in teaching, leadership, and clinical practice, focusing on the intersection of technology and mental health. He recently led mental health clinical for Verily (formerly Google Life Sciences), where he applied his expertise to develop innovative solutions for mental healthcare using the tools of AI/ML, digital therapeutics, clinical analytics, and more.. | Weston is known for his unique ability to innovate and support product development while bringing pragmatism to technology entrepreneurship. He is a strong advocate for patient-centered care and is committed to leveraging technology to improve the health and well-being of individuals and communities. |
Yu Shirai, MD (Psychiatry)
Dr. Shirai works at the Yotsuya Yui Clinic for mental health treatment for English and Portuguese-speaking patients. He treats a wide range of patients from neurodevelopmental disorders to dementia in children and participates in knowledge sharing through the Diversity Clinic.
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Behavioral abnormality
Level of consciousness getting worse
Strange movements
Level of consciousness decreasing
Unresponsive to verbal commands
Doesn't remember his/her name
Behave abnormally
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Content updated on Nov 7, 2023
About the symptom
Abnormal behavior refers to being aware or told that one has been acting strangely or differently from usual. Such behavior is often regarded as evidence of a mental or emotional disturbance, ranging from minor adjustment problems to severe mental disorder.
When to see a doctor
Seek professional care if you experience any of the following symptoms
Strange behaviour
Possible causes
- Alzheimer dementia (AD)
Alzheimer's disease is the most common cause of dementia. The brain shrinks, affecting memory and behavior. Symptoms worsen over time and can interfere with daily life. Increasing age raises the risk for Alzheimer dementia.
- sleepwalking
Sleepwalking occurs when someone walks or performs complex activities while not fully awake, typically during deep sleep.
- Hypothyroidism
A disorder where thyroid hormone levels in the body are abnormally low. These hormones are necessary for growth, development, and metabolism.
- Hyperactivity disorder
- Attention Deficit Hyperactivity Disorder (ADHD)
- Dissociative disorder
Related serious diseases
- Epilepsy
Epilepsy is a neurological disorder where brain activity becomes abnormal, causing seizures of varying durations and severities. It can affect people of any age and may be caused by genetic disorders or brain injuries, such as stroke.
- Hyponatremia
- Cerebral infarction
- Dehydration
Questions your doctor may ask about this symptom
Your doctor may ask these questions to check for this symptom
Have you noticed or been told that you have been acting strangely, differently from usual?
Have you currently regained consciousness after temporarily losing consciousness?
Do you have headaches or does your head feel heavy?
Do you have a fever?
Do you feel any weakness in your arms or legs?
Other Related Symptoms
Similar symptoms or complaints
Symptoms from similar body parts
Symptoms treated by the same specialty
References
American Psychological Association - Abnormal Behavior
https://dictionary.apa.org/abnormal-behavior
Reviewed By:
Weston S. Ferrer, MD (Psychiatry)
Weston Ferrer is a physician leader, psychiatrist, and clinical informaticist based in San Francisco. With nearly a decade of experience in academia and more recent immersion in industry, he has made significant contributions to the fields of digital health, health tech, and healthcare innovation. | As an Associate Professor at UCSF, Weston was involved in teaching, leadership, and clinical practice, focusing on the intersection of technology and mental health. He recently led mental health clinical for Verily (formerly Google Life Sciences), where he applied his expertise to develop innovative solutions for mental healthcare using the tools of AI/ML, digital therapeutics, clinical analytics, and more.. | Weston is known for his unique ability to innovate and support product development while bringing pragmatism to technology entrepreneurship. He is a strong advocate for patient-centered care and is committed to leveraging technology to improve the health and well-being of individuals and communities. |
Yu Shirai, MD (Psychiatry)
Dr. Shirai works at the Yotsuya Yui Clinic for mental health treatment for English and Portuguese-speaking patients. He treats a wide range of patients from neurodevelopmental disorders to dementia in children and participates in knowledge sharing through the Diversity Clinic.
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