Sign up for our newsletter
Get health tips, wellness advice, and more

Thanks for signing up!
You've been added to our list and will hear from us soon.

See all Healthline's newsletters »
Advertisement
Let's see if we can figure out what's causing your symptoms.
Select additional symptoms and we'll narrow your results.

What causes personality change and problem behavior? 6 possible conditions

See a list of possible causes in order from the most common to the least.

1

Dementia Overview

Find out what you need to know about dementia, and learn how it's different from ordinary aging.

Read more »

2

Delirium

This condition is considered a medical emergency. Urgent care may be required.

Delirium is an abrupt change in the brain that causes mental confusion and emotional disruption. It makes it difficult to think, remember, sleep, pay attention, and more. You might experience the condition durin...

Read more »

3

What is Alzheimer's Disease?

Alzheimer's disease (AD), the most common cause of dementia, is a progressive brain disorder. Learn about the causes, signs and research being done about AD.

Read more »

4

Head Injury

This condition is considered a medical emergency. Urgent care may be required.

A head injury is an injury to your brain, skull, or scalp. All head injuries should be treated seriously and assessed by a doctor.

Read more »

5

Adult Brain Tumor

A brain tumor is the growth of abnormal cells in your brain. Whether the growth is cancerous or not, any brain tumor is serious. Symptoms can include both cognitive and physical control problems.

Read more »

6

Epilepsy Overview

Epilepsy is a chronic disorder that causes unprovoked, recurrent seizures. Find out what causes it, who's at risk, how it's diagnosed, and more.

Read more »

This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
Advertisement
Advertisement
Advertisement