Intra-abdominal infections are infections that occur within the abdominal cavity, which houses organs such as the stomach, intestines, and liver. These infections can arise from various causes, including appendicitis, diverticulitis, or perforation of an organ. Symptoms often include abdominal pain, fever, and changes in bowel habits. Treatment typically involves antibiotics to combat the infection and may require surgical intervention to remove infected tissue or drain abscesses. Early diagnosis and management are crucial to prevent complications, such as sepsis, which can be life-threatening.