Bacterial or viral infection of the intestine may result in explosive watery diarrhea , tenesmus ( spasmodic contraction of anal sphincter with pain and persistent desire to defecate ) , and abdominal cramping pain 腸道被細(xì)菌或病毒感染,引起暴發(fā)性水瀉、里急后重(肛門括約肌痙攣性收縮伴疼痛,一直想要排便)及腹部絞痛。