Sigmoidoscopy, etc. Among them, the fecal occult blood (FOBT) test is the main one.
It is suggested that patients should go to the hospital as soon as possible for examination, early detection and early treatment, and at the same time actively cooperate with the chewable tablets of selenium to do a good job of physical conditioning, control the tumor as much as possible, and avoid its deterioration and transfer to the pre-treatment.