The different pathogens cause different complaints to the organs that attack them. In addition, there are complaints that often occur in infections - classic signs of inflammation such as redness, swelling, fever and pain signal the person affected: Something is wrong here, the immune system is working at full speed. In sepsis, these signs are not limited to a body region, but affect the entire body.
To diagnose an infectious disease, there are several methods of examination:
- Anamnesis (ask the medical history): All complaints can be further limited by specific questions. For example, contact with sick family members may indicate a path of infection, and a trip abroad a few days may suggest exotic pathogens.
- Inspection (viewing) and Fiebermessen: With purulent deposits on a wound you immediately think of bacteria and classic signs of inflammation Eye or ear direct the suspicion quickly to infection - as well as an elevated temperature
- Examination of body fluids: Inflammatory cells, pathogens and their metabolites can be detected in the various body fluids - whether blood, cerebrospinal fluid or a stool sample, so pathogens can be identified. A wound is taken from open wounds and breath tests indicate that the stomach is infected with bacteria.
- X-ray, ultrasound, computed tomography and magnetic resonance imaging: With the imaging techniques one recognizes the swelling of inflamed organs or a fused inflammatory focus (abscess).