Rhubarb is used to treat constipation caused by solid heat and stagnation, as it has the effect of catharticizing and attacking the accumulation of stagnation (treating constipation by passing stools). It can be used to treat constipation caused by solid heat and accumulation of stagnation. Rhubarb is mainly taken by decoction and should not be decocted for a long time when used for diarrhea. Rhubarb has the effects of diarrhea, clearing heat and fire, cooling the blood and detoxifying the toxin, expelling blood stasis and clearing the channels (removing blood stasis and clearing the channels), and inducing dampness and eliminating jaundice (eliminating dampness and eliminating jaundice). It can be used for constipation due to solid heat, epistaxis due to blood-heat (vomiting blood and nosebleed caused by blood-heat), redness of the eyes and swelling of the throat, carbuncle, carbuncle, carbuncle of intestines (carbuncle occurring in the intestines and bowels, manifested by fever, pain in the right abdomen, and palpable lump), abdominal pain, menstrual occlusion due to stasis of blood and stasis of blood, obstruction of stasis in the post-partum period, bruise, dysentery due to heat and dampness, and jaundice with redness in the urine and other diseases. It should be noted that rhubarb used for diarrhea should not be decocted for a long time. Constipation patients, it is recommended to go to a regular hospital, under the guidance of a professional physician to identify the treatment.