What does occult blood mean in the hospital physical examination form?

Occult blood test often appears in hospital physical examination sheets. Occult blood is occult blood, which means doctors can infer whether the patient has related diseases by checking whether the patient's stool, urine and other samples contain blood components. Usually, occult blood tests are performed to rule out or detect diseases in the gastrointestinal tract, urinary system and other parts of the body.

The significance of the occult blood test is to help doctors detect symptoms of problems in patients as early as possible, especially when the symptoms are eliminated by drugs or mild symptoms occur, such as in the early stages of gastric ulcers, colon cancer and other diseases. Regular occult blood tests can help doctors detect the condition early and give patients more chances of cure.

Occult blood tests are usually used to check stool, urine and other samples. There are many specific methods. For example, a reagent is added to the sample and the reagent reacts with hemoglobin to detect whether there are blood components in the sample; the amount of blood in the sample is observed through a microscope, etc. In short, doctors will choose appropriate methods for testing to ensure the accuracy and reliability of the examination.