Skip to Content
800-533-8762
  • Careers
  • Newsroom
  • Health Care Professionals
  • About Us
  • Contact Us
UPMC
  • Find a Doctor
  • Services
    • Frequently Searched Services
    • Frequently Searched Services
      Allergy & Immunology Behavioral & Mental Health Cancer Ear, Nose & Throat Endocrinology Gastroenterology Heart & Vascular Imaging Neurosciences Orthopaedics
      Physical Rehabilitation Plastic & Reconstructive Surgery Primary Care Senior Services Sports Medicine Telemedicine Transplant Surgery Walk-In Care Weight Management Women’s Health
      See all Services
    • Services by Region
    • Find a UPMC health care facility close to you quickly by browsing by region.
      UPMC in Western Pa. Western Pa. and New York
      UPMC in Central Pa. Central Pa.
      UPMC in North Central Pa. North Central Pa.
      UPMC in Western Md. Maryland & West Virginia
    • See All Services
  • Locations
    • Locations by Type
    • Locations by Type
      UPMC hospitals
      Hospitals
      Physical Therapy
      Physical Therapy
      Urgent care
      Walk-In Care
      UPMC Outpatient Centers
      Outpatient Centers
      UPMC Imaging Services
      Imaging
      Community Health Centers
      Community Health Centers
      See All Locations
    • Locations by Region
    • Locations by Region
      UPMC in Southwest Pa. Southwest Pa.
      UPMC in North Central Pa. North Central Pa.
      UPMC in Northwest Pa and Ny. Northwest Pa. & Western N.Y.
      UPMC in West Central Pa. West Central Pa.
      UPMC in Central Pa. Central Pa.
      UPMC in Western Md. Maryland & West Virginia
    • See All Locations
  • Patients & Visitors
    • Patient & Visitor Resources
    • Patient & Visitor Resources
      Patients and Visitors Resources Pay a Bill Classes & Events Medical Records Health Library Patient Information
      Patient Portals Privacy Information Shared Decision Making Traveling Patients Visitor Information
      Man uses mobile phone
      Pay a Bill
      Nurse reviews medical chart
      Request Medical Records
  • Patient Portals
  • Find Covid-19 updates
  • Schedule an appointment
  • Request medical records
  • Pay a bill
  • Learn about financial assistance
  • Find classes & events
  • Send a patient an eCard
  • Make a donation
  • Volunteer
  • Read HealthBeat blog
  • Explore UPMC Careers
Skip to Content
UPMC
  • Patient Portals
  • For Patients & Visitors
    • Find a Doctor
    • Locations
    • Patient & Visitor Resources
    • Pay a Bill
    • Services
    • More
      • Medical Records
      • Financial Assistance
      • Classes & Events
      • HealthBeat Blog
      • Health Library
  • About UPMC
    • Why UPMC
    • Facts & Stats
    • Supply Chain Management
    • Community Commitment
    • More
      • Financials
      • Support UPMC
      • UPMC Apps
      • UPMC Enterprises
      • UPMC International
  • For Health Care Professionals
    • Physician Information
    • Resources
    • Education & Training
    • Departments
    • Credentialing
  • Careers
  • Contact Us
  • Newsroom
  • UPMC >
  • Our Services >
  • Neurosurgery >
  • ... >
  • Brain >
  • Conditions >
  • Brain Tumors >
  • ​Brain Abscess
Neurosurgery
About Us
Contact Us
Conditions and Treatments
Brain
Conditions
Brain Tumors
Conditions
Our Experts
Treatments
Pituitary and Skull Base Tumors
Neurovascular
Cranial Nerve Disorders
Movement Disorders & Epilepsy
Chiari Malformation
Trauma & Injury
Treatments
Spine Neurosurgery
Neurophysiology
Meet the Neurosurgery Experts
Patient Stories
Classes, Events, & News
Neurocirugia
Neurosurgery
About Us
Contact Us
Conditions and Treatments
Brain
Conditions
Brain Tumors
Conditions
Our Experts
Treatments
Pituitary and Skull Base Tumors
Neurovascular
Cranial Nerve Disorders
Movement Disorders & Epilepsy
Chiari Malformation
Trauma & Injury
Treatments
Spine Neurosurgery
Neurophysiology
Meet the Neurosurgery Experts
Patient Stories
Classes, Events, & News
Neurocirugia

Chat Keywords List

  • cancel or exit: Stops your conversation
  • start over: Restarts your current scenario
  • help: Shows what this bot can do
  • terms: Shows terms of use and privacy statement
  • feedback: Give us feedback
Continue
Chat with UPMC
RESTART
MENU
CLOSE

​Brain Abscess

A brain abscess is an infection in the brain tissue. The infection creates a bubble of fluid called pus, a collection of white blood cells and bodily fluids. Brain abscesses can rupture, a potentially deadly issue.

The most common cause of a brain abscess is an infection elsewhere in the body. Brain abscesses are more common in people with weakened immune systems. Doctors treat them with medication and surgery.


Looking for Brain Abscess Care?

  • Call us at 1-412-647-3685 or outside the U.S., call 1-877-320-8762.
  • Fill out our UPMC Neurosurgery contact form.

On this page:

  • What Is a Brain Abscess?
  • What Are the Symptoms of a Brain Abscess?
  • How Do You Diagnose a Brain Abscess?
  • How Do You Treat a Brain Abscess?

What Is a Brain Abscess?

A brain abscess is an infection inside the brain that creates a bubble of pus. The abscess causes swelling that can cut off blood supply to parts of the brain.

A brain abscess is a severe and life-threatening condition. Ruptured abscesses have a high potential to cause death. Brain abscesses can also lead to brain damage or other issues, including seizures or infections in the brain's protective membranes.

What causes a brain abscess?

Brain abscesses form when germs reach the brain, from an infection in the blood to spread from dental, ear, or sinus infections or other preexisting infections. Germs — including fungi, viruses, or bacteria — can cause an abscess if they spread to the brain from elsewhere in the body.

Heart and lung infections are among the most common causes of brain abscesses. Sinus, dental, and ear infections may also lead to brain abscesses.

What are brain abscess risk factors?

People who are the most at risk of having a brain abscess have:

  • A chronic disease.
  • A suppressed immune system from drugs, like those prescribed after an organ transplant or cancer treatment.
  • Weakened immune systems, such as from older age or diabetes mellitus.

Back to top.


What Are the Signs and Symptoms of a Brain Abscess?

Symptoms of a brain abscess can come on suddenly or slowly. They may show up over several weeks, gradually getting worse.

Brain abscess symptoms may include:

  • Confusion and general changes in mental state, including the inability to focus. 
  • Decreased sensation.
  • Fever.
  • Headache.
  • Seizures.
  • Stroke-like symptoms.
  • Trouble speaking.
  • Vision changes.
  • Vomiting.
  • Weakness and difficulty with muscle function.

Symptoms of a brain abscess in babies and young children include high-pitched cries and poor feeding. The soft spot on the top of a baby's head, called the fontanel, may look full or bulge out.

Signs that the brain abscess has ruptured include:

  • Intolerance of bright light.
  • Rigidity in the neck muscles.
  • Sudden onset of a worsening headache.

When should I see a doctor about my brain abscess symptoms?

If you think you may have a brain abscess, see a doctor as soon as possible. Getting prompt treatment may require going to an emergency department or calling 911. The earlier you get treatment, the better.

Back to top.


How Do You Diagnose a Brain Abscess?

To diagnose a brain abscess, a doctor will do a physical exam and ask about symptoms. They will do imaging tests to confirm a diagnosis of brain abscess.

These may include:

  • CT scan 
  • MRI

Back to top.


How Do You Treat a Brain Abscess?

The treatment goal for a brain abscess is to reduce pressure inside the skull and get rid of the infection. Doctors usually treat brain abscesses with a combination of medicines and surgery.

Medicine to treat a brain abscess

Doctors will give medicines called antibiotics to help fight the infection. The doctor may prescribe several different antibiotics to treat the abscess. They may start antibiotics before they confirm the abscess.

Medicine may be the only treatment if the brain abscess is:

  • Accompanied by an infection in the lining of the brain.
  • Deep in the brain.
  • Smaller than two centimeters.

Surgery for brain abscess

In addition to antibiotics, a doctor may need to do brain surgery to remove or drain the brain abscess.

The doctor may recommend surgery if:

  • Antibiotics do not shrink the abscess.
  • Doctors think it may leak or burst open.
  • The abscess contains gas.
  • The abscess is bigger than two centimeters.

The surgical approach will vary depending on the location of the abscess.

What happens before and during surgery?

The UPMC neurosurgical team will do a thorough evaluation. They will choose the surgical approach that is least disruptive to the brain and critical nerves. This is often done with stereotactic image guidance, similar to using scans like MRI or CT like a GPS.

Their goal during surgery is to keep the brain functioning normally.

Recovery after surgery for a brain abscess

The amount of recovery time needed after surgery varies based on:

  • Any health problems that happen after surgery.
  • Location of the abscess.
  • Type of procedure used to treat it.
  • Your specific needs.

Most people will remain in the hospital for at least two to five days after surgery. Doctors and nurses will monitor your recovery.

Once the doctor approves discharge, recovery will continue at home, including at least four weeks of rest. Return to everyday life will depend on progress and any lingering health issues from the abscess or surgery.

Back to top.


By UPMC Editorial Staff. Last reviewed on 2024-10-01.

Quick Links

  • Patient Stories
  • For Pediatric Patients
  • Legacy of Innovation
UPMC
200 Lothrop Street Pittsburgh, PA 15213

412-647-8762 800-533-8762

Patients And Visitors
  • Find a Doctor
  • Locations
  • Pay a Bill
  • Patient & Visitor Resources
  • Disabilities Resource Center
  • Services
  • Medical Records
  • No Surprises Act
  • Price Transparency
  • Financial Assistance
  • Classes & Events
  • Health Library
Health Care Professionals
  • Physician Information
  • Resources
  • Education & Training
  • Departments
  • Credentialing
Newsroom
  • Newsroom Home
  • Inside Life Changing Medicine Blog
  • News Releases
About
  • Why UPMC
  • Facts & Stats
  • Supply Chain Management
  • Community Commitment
  • Financials
  • Supporting UPMC
  • HealthBeat Blog
  • UPMC Apps
  • UPMC Enterprises
  • UPMC Health Plan
  • UPMC International
  • Nondiscrimination Policy
Life changing is...
Follow UPMC
  • Contact Us
  • Website/Email Terms of Use
  • Medical Advice Disclaimer
  • Privacy Information
  • Active Privacy Alerts
  • Sitemap
© 2025 UPMC I Affiliated with the University of Pittsburgh Schools of the Health Sciences Supplemental content provided by Healthwise, Incorporated. To learn more, visit healthwise.org
Find Care
Providers
Video Visit
Portal Login