What is mastoiditis?
Mastoiditis is a bacterial infection in the mastoid bone of the skull. It can be quite painful and is a serious condition. Often a complication of an ear infection, mastoiditis requires medical attention and intervention.
Many cases of mastoiditis can be effectively treated with antibiotics, especially if they are diagnosed early. If the antibiotics are not effective, however, your doctor may recommend surgery.
The bone directly behind your ear is a protrusion of your skull called the mastoid. The mastoid is the back part of the temporal bone. It is located right next to your inner ear. The bone has a honeycomb-like structure, which means that it has many small pockets of air inside of it. A bacterial infection of this bone, or the air pockets inside it, is called mastoiditis. Symptoms of mastoiditis include:
- Pain in or behind your ear
- Swelling or redness behind your ear
- Discharge from your ear
- Loss of hearing
- Dizziness or vertigo
Mastoiditis is most often caused by an untreated inner or middle ear infection that spreads into the sponge-like structure of the mastoid bone. Mastoid bone infections are most frequently seen in children, though they can occur in adults. An infected mastoid can be an acute or a chronic condition, both of which require medical care.
Diagnosis for mastoiditis
If you have symptoms of an ear infection, your doctor will examine your ears, especially the one that is causing discomfort. They may perform a hearing test. Your doctor will also examine your head to determine if the infection has spread into the mastoid bone.
Your doctor may perform other tests to get a complete picture of the infection. These might include blood tests to examine your white blood cell count and a spinal tap to determine whether the infection has reached your cerebrospinal fluid. Your doctor may also collect some of the fluid that is around the infected area to culture the bacteria and identify it.
Your doctor may also use a computerized tomography (CT) or magnetic resonance imaging (MRI) scan to further assess the infection in your mastoid bone.
Treatments for mastoiditis
If your doctor is able to diagnose mastoiditis in the early stages of infection, it may be treated with antibiotics. Serious cases of mastoiditis could require intravenous (IV) antibiotics and hospitalization, antibiotic injections into the infected mastoid bone, as well as topical and oral antibiotics.
If antibiotics are not effective, your doctor may consider surgery. They may refer you to an Ear, Nose, and Throat Specialist (also called an otolaryngologist) for the procedure.
When choosing the right antibiotic to treat mastoiditis, your doctor will select one that will penetrate your central nervous system. The antibiotic will kill the bacteria there and in the mastoid bone. It is common to use a combination of antibiotics in different ways to treat the infection in the mastoid bone. You may receive these through an IV, direct antibiotic injections into the infection, antibiotics taken orally, and/or topical applications to your skin around the infected area.
The most commonly used antibiotics are ceftriaxone, vancomycin, and linezolid. Your doctor will decide the best option for you based on your symptoms, overall health, age, and other factors.
If antibiotics do not effectively eliminate the infection in the mastoid bone, your doctor might perform surgery. This could involve the removal of part of the mastoid bone (called a mastoidectomy) or the placement of tympanostomy tubes.
Mastoiditis is a serious condition and requires professional medical care. If you have the symptoms of an ear infection, you should talk to your doctor. The best way to avoid mastoiditis is to promptly and thoroughly manage any ear infections. This ensures that they do not spread into your mastoid bone.
- Attachment Theory: What It Is, Stages & the Different Attachment Styles
- Gentle Parenting: What It Is, Techniques & Discipline
- U.S. Nursing Homes Fail to Report Many Serious Falls, Bedsores: Study
- The Younger You Get Diabetes, the Higher Your Risk for Dementia Later
- FDA Grants Full Approval to Paxlovid to Treat COVID-19
- More Health News »
Possible complications and side effects
If a mastoid bone infection is not treated, it can cause serious complications including:
- Permanent hearing loss
- Facial paralysis
- Cranial nerve damage
- Labyrinthitis (an inflammation disorder in the inner ear)
- Abscesses in the skull
- Blood clots
- Meningitis (inflammation of the covering of the brain or spinal cord)
The antibiotics that your doctor uses to treat mastoiditis may have side effects. Discuss any of these side effects of antibiotics with your doctor.
Health Solutions From Our Sponsors
Columbia University Department of Otolaryngology Head and Neck Surgery: “Mastoiditis.”
Columbia University Department of Otolaryngology Head and Neck Surgery: “Tympanostomy Tubes.”
Merck Manual Professional Version: “Mastoiditis.”
National Health Service: “Mastoiditis.”
PediatricEducation.org: “What Are the Complications of Mastoiditis?”
Stanford Children’s Health: “Mastoiditis in Children.”
Top Can Mastoiditis Be Treated With Antibiotics Related Articles
Ear Infections: All About Ear ConditionsWhat's that? I can't hear you. Maybe it's tinnitus, or impacted ear wax, or cauliflower ear (yup, that's a thing). Find out what may be ailing your ears in this slideshow.
amoxicillinAmoxicillin is an antibiotic that belongs to a class of antibiotics called penicillins. Common infections that amoxicillin is used to treat include middle ear infections, tonsillitis, laryngitis, bronchitis, pneumonia, skin, gonorrhea, and urinary tract infections. Common side effects of amoxicillin include nausea, itching, vomiting, confusion, abdominal pain, and easy bruising. Amoxicillin is generally considered safe to use while pregnant or breastfeeding.
Ear Infection SlideshowLearn about the causes and symptoms of ear infections and how they are diagnosed and treated. Read about treatments such as ear tubes and antibiotics, which could prevent future ear infections.
ceftriaxoneCeftriaxone injection is a broad spectrum third generation cephalosporin antibiotic used to treat bacterial infections, including ear infections, pelvic inflammatory disease, meningitis, skin infections, gonorrhea, and others. Common side effects of ceftriaxone include injection site reactions (swelling, redness, pain, a hard lump, or soreness), increase in eosinophils, increased blood platelets (thrombocytosis), diarrhea, elevated liver transaminases, low white blood cell count (leukopenia), rash, increased blood urea nitrogen (BUN), and pain.
Mono (Infectious Mononucleosis)Infectious mononucleosis is a virus infection in which there is an increase of white blood cells that are mononuclear (with a single nucleus) "Mono" and "kissing disease" are popular terms for this very common illness caused by the Epstein-Barr virus (EBV).
Inner Ear InfectionAn inner ear infection or otitis interna is caused by viruses or bacteria and can occur in both adults and children. An inner ear infection can cause symptoms and signs, for example, a severe ear, dizziness, vertigo, nausea and vomiting, and vertigo. An inner ear infection also may cause inflammation of the inner ear or labyrinthitis. Inner ear infections are not contagious; however, the bacteria and viruses that cause the infection can be transmitted to other people. Good hygiene practices will help decrease the chances of the infection spreading to others. Inner ear infection symptoms and signs like ear pain and nausea may be relieved with home remedies or over-the-counter (OTC) medication. Some inner ear infections will need to be treated and cured with antibiotics or prescription pain or antinausea medication.
Inner Ear Infection (Labyrinthitis)Labyrinthitis occurs when there is inflammation of the part of the ear responsible for balance and hearing), usually due to viral infections of the inner ear. Learn about causes, symptoms, and treatment.
MastoiditisMastoiditis in children and adults is inflammation and/or infection of the mastoid bone, which is located behind the ear. The most common cause of mastoiditis is an inner ear infection or otitis media. Acute mastoiditis lasts for a short period, while chronic mastoiditis can last for months to years. Symptoms of acute mastoiditis in children and adults include pain and swelling behind the ear, pus draining from the ear, and a low-grade fever. Complications of mastoiditis include meningitis, abscess, dizziness, and conductive hearing loss. Mastoiditis requires antibiotic treatment so it cannot be treated at home with natural products or home remedies; however, home remedies may help reduce symptoms of pain, inflammation, and fever. Some individuals will need surgery to cure their infection.
Penicillin (Antibiotics)Penicillin antibiotics are prescribed to treat a variety of types of infections. For example, middle ear and sinus infections; bladder, stomach, intestines, and kidney; pneumonia; sepsis; meningitis; endocarditis; and many other serious infections. Examples of penicillin antibiotics, side effects, drug interactions, and pregnancy and breastfeeding safety information should be reviewed prior to taking any medication.
piperacillinPiperacillin is a semisynthetic extended-spectrum antibiotic of the penicillin group of antibiotics. Piperacillin is administered as an intravenous (IV) or intramuscular (IM) injection and is used to treat various types of serious infections caused by susceptible strains of bacteria, including intra-abdominal infections, urinary tract infections (UTIs), gynecologic infections, septicemia, lower respiratory tract infections, skin and skin structure infections, bone and joint infections, and uncomplicated gonococcal urethritis. Common side effects of piperacillin include local reactions, diarrhea, loose stools, nausea, vomiting, bloody diarrhea, elevated liver enzymes (LDH, AST and ALT), and others.
What Are the Symptoms of a Mastoid Infection?What is a mastoid infection, and what causes it? Learn the signs of mastoiditis and how it is diagnosed and treated.