Blood tests are used, among other things, to check whether your organs such as the heart, kidneys or liver are functioning properly. For example, a deviation can also be determined. But there are also diseases that leave no trace in your blood. Many types of cancer, for example. Although there are also cancer types that can be seen in your blood.
Infections: Blood tests can be used to screen for a wide variety of infectious diseases, including HIV, hepatitis B and C, malaria, tuberculosis, syphilis, and other bacterial, viral, and fungal infections.
Anemia: Blood tests can measure the levels of various blood cells, such as red blood cells, white blood cells, and platelets. A low red blood cell count may indicate anemia, a condition where the body is not getting enough oxygen.
Cancer: Blood tests can help detect some types of cancer by measuring specific markers in the blood that may indicate the presence of cancer, such as prostate-specific antigen (PSA) for prostate cancer.
Autoimmune diseases: Blood tests can also help detect autoimmune disorders, in which the body’s immune system mistakenly attacks its own tissues. Examples of autoimmune diseases that can be detected with blood tests are lupus, rheumatoid arthritis, and celiac disease.
Diabetes: Blood tests can be used to measure blood sugar levels, which can help diagnose diabetes.
