What Is A Brain Abscess?: Symptoms, Causes, Treatment

What Is A Brain Abscess?

One cause involves a blood-brain wall, a protecting system of blood vessels and cells. It blocks some of the blood flowing to the brain, but it allows others to pass.

Sometimes, the infection can be caused by a blood-brain barrier. For example, it can happen when inflammation breaks the wall, leading to obstructions.

If the infection starts inside the skull, it spreads to the brain in the nose or ears.

I had earlier shared What Is Autoimmune Encephalitis?: Symptoms, Causes, Treatment. I hope you read the post.

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Table of Contents

Causes of brain abscess

  • Dental infection
  • Ear infection
  • Sinus infection
  • Infection to the mastoid bone
  • Injury
  • Surgery

I also wrote a tutorial on What Is Sinus Problem? that you can follow.

Risk factors

  • A weak immune system
  • Drugs that suppress the immune system 
  • Congenital heart disease
  • Chronic disease, such as cancer

Also see: Brain Cancer Prognosis

Symptoms of brain Abscess

The signs and symptoms of a brain Abscess.

  • Headache
  • Fever
  • Neck stiffness
  • Drowsiness
  • Confusion
  • Seizures
  • Irritability
  • Paralysis
  • Weakness
  • Loss of sensation
  • Dysphasia (speech problems)
  • Vomiting

To learn more, you read this post:


  • Blood culture
  • Skull x-ray
  • Blood test
  • EEG
  • MRI (determineinflammation.)
  • CT scan
  • Lumbar puncture and CSF examination
  • Brain biopsy

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Treatment usually involves surgery and medication

Generally, if a doctor suspects a brain blister, he or she will prescribe immediate-spectrum antibiotics.

  • But tests show that if the infection is viral rather than bacterial, the doctor will treat it appropriately.
  • If the abscess is minor than 1 inch, the person will probably only receive an intravenous antibiotic, antifungal, or antiviral medication. 
  • However, the doctor may need to drain the small abscess to determine which antibiotics will work best.
  • If a blister is more significant than 1 inch, the doctor will drain or cut it.
  • If there are more blisters, cutting them can also be very, very dangerous.
  •  Any primary infection also requires treatment, for example, in the lungs, stomach, or nose.

Also see: Psychotropic Medications Are Drugs That Treat Psychiatric Symptoms By Restoring…

Surgery: A person may need surgery if:

  • Pressure in the brain.
  • The blister does not respond to medications.
  • There is also a risk that the blister may rupture
  • A craniotomy is a process in which the surgeon opens into the head.
  • The surgeon will cut a small area of skin above the scalp. To get into the brain, they remove a small piece of bone.
  • They can either remove the blister or drain the pus, possibly with the help of a CT scan.
  • They will replace the bones and stitch the skin.


If there is a risk of complications such as intracranial pressure and meningitis

I hope this article may helpful: How Do You Get Bacterial Meningitis?: Meningitis Precautions

However, doctors do not command corticosteroids as a standard measure.

Any doctor can prescribe anticonvulsants to prevent an attack, and anyone with a brain abscess can take anticonvulsants for up to 5 years.


Brain abscess can lead to more neurological problems, including physical function, personality changes, and seizures.

Identify possible symptoms of a brain abscess and seek help immediately if it occurs. The earlier a person gets treatment, the more likely they are affected, and it can avoid it.

The doctor monitors a person during recovery as an abscess may recur and can do a weekly CT scan for two weeks. So, long-term care is essential.

Here are a few other hand-picked articles for you to read next:

Still have any questions about Brain abscess? Ask in the comments section!

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