Peritonitis caused by Anaerobic Bacterial Infection

Peritonitis Caused by Anaerobic Bacterial Infection

Peritonitis is a serious bacterial infection of the abdominal cavity that is caused by either aerobic or anaerobic bacteria. It can be caused by several different types of bacteria, such as Streptococci, Staphylococci, Escherichia coli, and Klebsiella pneumoniae. The most common cause of peritonitis is anaerobic bacterial infection, which can cause abdominal pain, fever, chills, nausea, and vomiting.

When anaerobic bacteria, which don’t require oxygen to survive, enter the peritoneal cavity, they can cause an infection. This type of infection can be caused by a variety of conditions, including diverticulitis, penetrating abdominal trauma, and appendicitis. In some cases, the bacteria can spread from other sources, such as the urinary tract, colon, or vagina. In other cases, the bacteria can enter through a weakened abdominal wall or from an IV site.

When peritonitis is suspected in a patient with abdominal pain and fever, a physical exam can help confirm the diagnosis. Doctors may also order laboratory tests such as a complete blood count, urine analysis, or imaging tests such as an X-ray, CT scan, or ultrasound to help identify the source of infection.

Treatment for anaerobic peritonitis typically involves antibiotics and surgery to remove the infected tissue. The type of antibiotic used will depend on the type of bacteria causing the infection. For example, metronidazole is often used to treat anaerobic infections. Surgery may be used to remove a portion of the affected tissue and to drain any pus that is present.

If peritonitis is not treated quickly and appropriately, it can become severe and even deadly. Symptoms such as fever, abdominal pain, nausea, and vomiting can become more severe and can lead to multiple organ failure or death. Therefore, it is important to seek medical attention as soon as possible if there is a suspicion of peritonitis.


There are several steps that can be taken to help prevent anaerobic peritonitis, such as practicing good hygiene, maintaining a healthy lifestyle, and avoiding activities that increase the risk of abdominal trauma.

  • Practice good hygiene. This includes washing hands often, showering regularly, and avoiding contact with people who are known to have an infection.
  • Maintain a healthy lifestyle. Eat a balanced diet and exercise regularly.
  • Avoid activities that increase the risk of abdominal trauma, such as contact sports or extreme sports.
  • If you have an IV site, make sure it is properly cared for and changed regularly.
  • If you suffer from any type of abdominal condition, such as diverticulitis or appendicitis, seek treatment and follow your physician's advice.