Drowsiness, Seizures: 18 Possible Causes
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What causes drowsiness and seizures? 18 possible conditions

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

1

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.

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2

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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3

Low Blood Sodium (Hyponatremia)

Low blood sodium, or hyponatremia, occurs when water and sodium are out of balance in your body. A quick drop in sodium levels can cause weakness, headache, nausea, and muscle cramps.

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4

Encephalitis

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

Encephalitis is an inflammation of the brain tissue. It's most often caused by viral infections. In some cases, bacterial infections can cause encephalitis.

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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.

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6

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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7

Hypercalcemia

Hypercalcemia is a condition in which you have too much calcium in your blood. Serious cases could cause symptoms like abdominal pain, nausea, constipation, and weakness.

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8

Acute Mountain Sickness

Acute mountain sickness, or altitude sickness, is a condition that occurs when your body can't adjust to a high level of altitude.

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9

Malignant Hypertension (Arteriolar Nephrosclerosis)

Malignant hypertension is a rare and severe condition in which blood pressure is dangerously high. Learn more about symptoms and treatments.

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10

Amphetamine Dependence

Amphetamines are a type of stimulant and can be highly addictive. Consistent amphetamine dependence can lead to overdose, brain damage, and even death.

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11

Epidural Hematoma

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

An epidural hematoma occurs when blood fills the area between the skull and the protective covering of the brain. It usually results from a traumatic injury to the head, and puts you at risk for brain damage or death.

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12

Shaken Baby Syndrome

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

Shaken baby syndrome is caused by forcefully and violently shaking a baby. Learn about shaken baby syndrome symptoms, diagnosis, and treatment.

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13

Chronic Kidney Disease

Chronic kidney disease (CKD) is the progressive and irreversible destruction of the kidneys. The most common causes of CKD are high blood pressure and diabetes.

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14

End-Stage Kidney Disease

In end-stage kidney disease, also known as end-stage renal disease (ESRD), the kidneys are functioning below 10 percent of their normal function.

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15

Glomerulonephritis

Glomerulonephritis is a serious illness that can be life-threatening and requires immediate treatment. The condition is sometimes called nephritis.

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16

Medullary Cystic Disease

Medullary cystic kidney disease (MCKD) is a rare condition in which small, fluid-filled sacs called cysts form in the center of the kidneys. These cysts scar the kidneys and cause them to malfunction. In order t...

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17

Brain Abscess

An abscess of the brain is usually the result of a bacterial or fungal infection. The infection will cause your brain to swell from the collection of pus and dead cells that form. A brain abscess can form when fungi...

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18

Kidney Failure

Your body becomes overloaded with toxins if your kidneys can't do their regular job. This can lead to kidney failure and even be life-threatening.

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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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