What is a cerebral abscess?
A cerebral abscess is a pus-filled pocket of infected material in your brain. It is
sometimes called a brain abscess.
An abscess can cause your brain to swell, putting harmful pressure on brain tissue.
An abscess can also keep blood from flowing to parts of your brain. If you develop
this problem, you will need emergency treatment.
What causes a cerebral abscess?
A cerebral abscess often occurs when bacteria or fungi make their way into your brain.
This can happen either through your bloodstream or from an infected area in your head,
such as your ears or sinuses. An injury to your head or head surgery can also let
in germs that can cause an abscess.
Who is at risk for cerebral abscess?
The following raises your risk for a cerebral abscess:
HIV/AIDS or other conditions that affect your immune system
Medicines that inhibit your immune system
Recent injury to your head or head surgery (including dental procedures)
History of intravenous (IV) drug abuse
What are the symptoms of a cerebral abscess?
A cerebral abscess can cause many symptoms, including:
Fevers and chills
Going in and out of consciousness
Weakness on one side of your body
Nausea and vomiting
Changes in personality
Trouble moving or speaking
Stiffness in the neck or back
How is a cerebral abscess diagnosed?
Your healthcare provider will ask about your symptoms. He or she may do a neurological
exam to look for changes in motor and sensory function, vision, coordination, and
balance. He or she will also check your mental status and mood or behavior. You may
also need tests, such as:
MRI or CT scan of your head
Blood tests to look for signs of germs and other signs of infection
Tests of a sample from the abscess to determine the cause of your infection
How is a cerebral abscess treated?
Your healthcare provider can treat cerebral abscesses with medicines. These include:
You may also need surgery, especially for larger abscesses. Your surgeon will go through
your skull to expose your brain. He or she will drain material in the abscess and,
if possible, remove it entirely. If the abscess is deep in your brain, your surgeon
may need to drain it with a needle, with help from a CT or MRI scan. These help direct
the needle to the right area.
What are possible complications of a cerebral abscess?
Treating a cerebral abscess right away is very important. Without treatment, very
serious complications can set in, including death. Even with treatment, some people
might have long-term neurologic problems, such as weakness or trouble moving.
What can I do to prevent a cerebral abscess?
If you have an infection elsewhere in your body, make sure it's properly treated.
This may help prevent a cerebral abscess. If your healthcare provider has suggested
that you take antibiotics before certain procedures, such as dental work, be sure
to follow these directions.
When should I call my healthcare provider?
Treating a cerebral abscess as soon as possible is essential. Call your healthcare
provider right away if you have:
Any type of neurological problem, such as seizures or changes in consciousness
Fever with a bad headache
If you already have a cerebral abscess and are being treated, it's very important
to tell your healthcare provider if any of your symptoms get worse, or if you develop
any new symptoms. These could be signs that your infection is getting worse, despite
Key points about cerebral abscess
A cerebral abscess is an infection in your brain. It is a medical emergency that requires
treatment right away.
Symptoms can include headache, fever, changes in consciousness, confusion, neck stiffness,
vomiting, seizures, weakness, trouble moving, and changes in vision.
Treatment is with strong antibiotics. You may also take other medicines, such as steroids
or those to prevent seizures. Surgery might be needed to drain the fluid from the
abscess or to remove it completely.
Tips to help you get the most from a visit to your healthcare provider:
Know the reason for your visit and what you want to happen.
Before your visit, write down questions you want answered.
Bring someone with you to help you ask questions and remember what your provider tells
At the visit, write down the name of a new diagnosis, and any new medicines, treatments,
or tests. Also write down any new instructions your provider gives you.
Know why a new medicine or treatment is prescribed, and how it will help you. Also
know what the side effects are.
Ask if your condition can be treated in other ways.
Know why a test or procedure is recommended and what the results could mean.
Know what to expect if you do not take the medicine or have the test or procedure.
If you have a follow-up appointment, write down the date, time, and purpose for that
Know how you can contact your provider if you have questions.