脊端穷骨（脊骨尽处。）一名龟尾。当中灸三壮。治肠风泻血即愈。须颠倒身方灸得。
久冷五痔便血。脊中百壮。（千翼）
何教授汤簿有此疾积年。皆一灸除根。汤簿因传此法。后观灸经。此穴疗小儿脱肛泻血
。盖
岐伯灸小儿法也。后人因之以灸大人肠风泻血尔。盖大人小儿之病初不异故也。五痔便血失
屎。（回气百壮。在脊穷骨上赤白下。）
长强、治肠风下血。（铜见痔。）
肠风药甚众。多不作效。何也。本草衍义曰、肠风乃肠痔。苟知其为痔而治之。无不效
矣。
若灸肠风。长强为要穴云。近李仓肠风。市医以杖量脐中于脊骨当脐处灸。即愈。予因此为
人灸肠风。皆除根。（陆氏方治下血除根。）
复留、（见痢。）束骨、会阳、（见泻。）主肠 。（千）中都、治肠 。 疝小腹痛。
（铜）四满、治肠 切痛。（见积聚。）
结积留饮 囊。胸满饮食不消。灸通谷五十壮。（千）大肠俞、主风。腹中雷鸣。大肠
。肠 泄痢。食不消化。小腹绞痛。腰脊疼强。大小便难。不能饮食。灸百壮。三报之。
诸结积留饮 囊。胸满饮食不消。通谷五十壮。又胃管三百。三报之。第十五椎名下极俞、
主腹中疾。腰痛。膀胱寒。 饮注下。随年壮。（千翼）会阳、主腹中有寒泄注。肠 便血
。束骨、主肠 泄。膺窗、主肠鸣泄注。阳纲、主大便不节。小便赤黄。肠鸣泄注。
三焦俞、小肠俞、下 、意舍、章门、主肠鸣腹胀欲泄注。（千）
The bone at the end of the spine, known as the coccyx (the terminal part of the vertebral column), has an acupoint named Guwei (Tortoise Tail). Moxibustion of three moxa cones (Zhuang) at this point cures Changfeng bleeding from the intestines. The patient must be inverted to accurately locate and treat this point.
For chronic cold-induced hemorrhoids (Wuzhi) with rectal bleeding, one hundred moxa cones can be applied at Jizhong. (From *Qianyi*)
Professor He and Clerk Tang both suffered from this condition for years, yet a single application of moxibustion eradicated the root cause. Clerk Tang subsequently transmitted this method. Upon consulting the Moxibustion Classics, it was found that this acupoint was originally used to treat prolapse of the rectum and bloody diarrhea in children. This is likely the method of Qibo for treating pediatric cases. Later generations adopted this method to treat Changfeng bleeding in adults, as the initial pathology in adults and children is essentially the same.
For hemorrhoids with rectal bleeding accompanied by fecal incontinence, apply one hundred moxa cones at Huiqi. This point is located above the coccyx, below the intersection of the red and white vessels. (From *Tongren Shuxue Zhenjiu Tujing*)
Changqiang treats Changfeng with rectal bleeding. (See *Tongren Shuxue Zhenjiu Tujing: Hemorrhoids Section*)
There are many herbs for treating Changfeng, but most are ineffective. Why? *Bencao Yan Yi* states that Changfeng is actually intestinal hemorrhoids. If one recognizes it as hemorrhoids and treats accordingly, there will be no failure.
If using moxibustion for Changfeng, Changqiang is the essential acupoint. Recently, Li Cang suffered from Changfeng. A city physician measured from the umbilicus with a staff and applied moxibustion on the spine opposite the umbilicus, resulting in immediate cure. I have since treated others for Changfeng with moxibustion, achieving permanent remission. (Lu's Formula records treatment for rectal bleeding with permanent cure.)
Fuliu (see Dysentery section), Shugu, and Huiyang (see Diarrhea section) primarily treat Changpi. (From *Qianyi*)
Zhongdu treats Changpi and hernia with lower abdominal pain. (From *Tongren*) Siman treats severe pain from Changpi. (See Accumulation and Collection section)
Accumulated fluid retention forming cysts, causing chest fullness and indigestion, can be treated with fifty moxa cones at Tonggu. (From *Qianyi*) Dachangshu primarily treats wind causing borborygmus in the abdomen, large intestine disorders, Changpi with dysentery, undigested food, severe lower abdominal cramping, stiffness and pain in the waist and spine, difficulty in urination and defecation, and inability to eat. Apply one hundred moxa cones, divided into three sessions.
Various accumulated fluid retention cysts causing chest fullness and indigestion can be treated with fifty moxa cones at Tonggu; additionally, apply three hundred moxa cones at Weiguan, divided into three sessions. Mingjishu, located below the fifteenth thoracic vertebra, primarily treats abdominal diseases, lower back pain, bladder cold, and downward flow of retained fluids. The number of moxa cones should correspond to the patient's age. (From *Qianyi*) Huiyang primarily treats cold-induced watery diarrhea and Changpi with rectal bleeding. Shugu primarily treats Changpi diarrhea. Yingchuang primarily treats borborygmus and watery diarrhea. Yanggang primarily treats uncontrolled defecation, dark yellow urine, and borborygmus with watery diarrhea.
Sanjiaoshu, Xiaochangshu, Xi liao, Yishe, and Zhangmen primarily treat borborygmus, abdominal distension, and impending watery diarrhea. (From *Qianyi*)