What causes confusion and irritable mood? 14 possible conditions

Viewing 14 of 14 results

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

1

Low Blood Sugar (Hypoglycemia)

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

Also known as hypoglycemia, low blood sugar can be a dangerous condition. Hypoglycemia is rare in people who are not suffering from diabetes, the chronic disease that affects the body's ability to regulate blood sugar...

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2

Head Injury

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

A head injury could be an injury to the brain, skull, or scalp. It can vary in severity depending on the cause. In some cases face swelling can be a sign of a head injury.

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3

Skull Fractures

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

A skull fracture is any break in the cranial bone, or the skull. It can result in bleeding, bruising, pain, and swelling. Less severe symptoms include headache, nausea, confusion, and blurred vision.

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4

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.

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5

CFS (Chronic Fatigue Syndrome)

Chronic fatigue syndrome (CFS) is a debilitating disorder characterized by intense fatigue that cannot be cured with sleep. Mental and physical activities may cause symptoms to worsen. When fatigue cannot be linked to ...

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6

Concussion

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

A concussion is a mild traumatic brain injury. Usually it occurs after an impact to your head or after a whiplash-type injury. A concussion can cause many severe symptoms that affect brain function.

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7

Drug Allergy Overview

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

A drug allergy is an allergic reaction to a medication. Your immune system identifies the drug as foreign and acts to eliminate it from your body.

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8

Subarachnoid hemorrhage

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

This life-threatening hemorrhage involves bleeding between the brain and the tissues that cover it. If you experience an extreme headache, a popping sound in your head, seizures, and other symptoms, seek immediate help.

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9

Dementia Overview

Dementia may affect memory, thinking, language, judgment, and behavior. Mental impairment must affect at least two brain functions to be considered dementia.

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10

Encephalitis

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

Encephalitis is inflammation of the brain tissue usually caused by viral infection. Mild symptoms include fever, headache, and vomiting. Seizure, unconsciousness, and high fever are severe signs.

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11

Alcohol Withdrawal Syndrome

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

Alcohol withdrawal syndrome (AWS) is the name for the symptoms that occur when a heavy drinker suddenly stops or significantly reduces their alcohol intake. With AWS, you may feel mild anxiety and fatigue. You may als...

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12

Low Blood Sodium (Hyponatremia)

Low blood sodium is also known as hyponatremia . Sodium is an electrolyte. It helps maintain the balance of water in and around your cells. Sodium is important for proper muscle and nerve function. It also keeps you...

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13

Carbon Monoxide Poisoning

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

Carbon monoxide (CO) is a gas that is both odorless and colorless. It emanates from anything that produces combustion fumes. Common devices that produce these fumes include: heaters fireplaces car mufflers space heater...

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14

Huntington's Disease

Huntington's disease is a hereditary condition in which your brain's nerve cells gradually break down. This affects your physical movements, emotions, and cognitive abilities. There is no cure, but there are ways t...

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