Large intestinal fire can appear abdominal pain, diarrhea, burning anus, thirst, as well as urinary incontinence (urinary incontinence) and other symptoms. Intestinal fire for the common saying, generally corresponds to the theory of traditional Chinese medicine in the large intestine damp-heat (the large intestine to feel the damp-heat evil) certificate, mostly due to external infection of damp-heat evil or dietary disorders, resulting in damp-heat condensation (dampness and heat in the body of the body each other gathered) caused by the large intestine. Clinically, damp-heat syndrome of the large intestine often manifests as diarrhea, abdominal pain, fecal pus and blood, burning in the anus, thirst without drinking much, urination is not conducive to the dark color of urine, chest and epigastrium full of boredom, heavy body, diet, nausea and vomiting and other symptoms. It is recommended that patients with the above symptoms seek medical attention in a timely manner, under the guidance of the doctor’s diagnosis and standardized treatment, do not take medication without authorization, so as not to cause delays in the condition.