《素问》曰∶肝满、肾满、肺满皆实，即为肿。（王注云∶满谓脉气满实，肿谓痈肿。）肺之
痈，喘而两 满。（仲景云∶肺痈吐脓如米粥，咽燥振寒。） 肝痈两 满，卧则惊，不得小便。
肾痈脚下至小腹满。（大奇论林亿云∶脚下当作 下。《千金》云∶肠痈之为病，小腹肿强，按则痛便
数，似淋。仲景云∶肠痈小腹痞坚，盖小腹痛而痞坚者肾痈也，小便数而似淋者肠痈也，即肺痈肝痈之
属。）
胃脘痈，人迎脉逆而盛。（全文见后胃脘痈条。）
辨脏腑内疮
中府隐隐痛者肺疽，其上肉微起者肺痈。
巨阙隐隐痛者心疽，其上肉微起者心痈。
期门隐隐痛者肝疽，其上肉微起者肝痈。
章门隐隐痛者脾疽，其上肉微起者脾痈。
京门隐隐痛者肾疽，其上肉微起者肾痈。
中脘隐隐痛者胃疽，其上肉微起者胃痈。
天枢隐隐痛大肠疽，其上肉微起大肠痈。
丹田隐隐痛三焦疽，其上肉微起三焦痈。
关元隐隐痛小肠疽，其上肉微起小肠痈。
怀忠丹 治内痈有败脓败血，腥秽殊甚，所致脐腹冷痛，用此推脓下血。
白芷 单叶红蜀葵花根（各一两） 白矾（枯） 白芍药（各五钱）
上研为末，熔黄蜡丸，如梧子大。空心，米汤下三十丸推脓下血，出尽后服十宣散补
之。忌发物。（又方猪膏煎鲫鱼食，治肠痈。又方以鳖甲烧存性末，服之。）
《素问》说：肝、肾、肺三脏脉气满实，就会发生肿胀。（王冰注释说：满是指脉气满实，肿是指痈肿。）肺痈的症状是气喘且两胁胀满。（张仲景说：肺痈患者咳吐脓液如米粥状，咽喉干燥并伴有寒战。）肝痈表现为两胁胀满，睡眠时易受惊扰，小便不通畅。肾痈表现为脚部至小腹部胀满。（林亿在《大奇论》中注释说：“脚下”应当作“髀下”。《千金方》说：肠痈的病症是小腹肿胀坚硬，按压则疼痛且小便频数，症状类似淋证。张仲景说：肠痈小腹痞硬坚实。大概小腹痛而痞硬的是肾痈，小便频数且类似淋证的是肠痈，这属于肺痈、肝痈的同类病症。）胃脘痈，人迎脉逆乱而盛大。（全文详见后文胃脘痈条目。）
辨别脏腑内部疮疡：
中府穴处隐隐作痛的是肺疽，该处肌肉微微隆起的是肺痈。
巨阙穴处隐隐作痛的是心疽，该处肌肉微微隆起的是心痈。
期门穴处隐隐作痛的是肝疽，该处肌肉微微隆起的是肝痈。
章门穴处隐隐作痛的是脾疽，该处肌肉微微隆起的是脾痈。
京门穴处隐隐作痛的是肾疽，该处肌肉微微隆起的是肾痈。
中脘穴处隐隐作痛的是胃疽，该处肌肉微微隆起的是胃痈。
天枢穴处隐隐作痛的是大肠疽，该处肌肉微微隆起的是大肠痈。
丹田穴处隐隐作痛的是三焦疽，该处肌肉微微隆起的是三焦痈。
关元穴处隐隐作痛的是小肠疽，该处肌肉微微隆起的是小肠痈。
怀忠丹用于治疗内痈伴有败脓败血，腥臭秽浊特别严重，导致脐腹部冷痛的情况，使用此药可推动脓血排出。
白芷一两，单叶红蜀葵花根一两，枯白矾适量，白芍药五钱。
以上药材研为细末，用熔化的黄蜡制成丸剂，大小如梧桐子。空腹时，用米汤送服三十丸，以推排脓血，待脓血排尽后服用十宣散进行补益。忌食发物。（另有方剂：用猪油煎鲫鱼食用，治疗肠痈。另有方剂：将鳖甲烧存性后研末服用。）
The *Suwen* (Basic Questions) states: When the liver, kidney, and lung are full and solid, swelling occurs. (Wang Bing’s commentary notes: "Full" refers to pulse qi being full and solid; "swelling" refers to carbuncles and sores.) Lung abscess presents with wheezing and distension in both hypochondriac regions. (Zhang Zhongjing stated: In lung abscess, purulent sputum is expectorated like millet porridge, accompanied by dry throat and chills.) Liver abscess manifests as distension in both hypochondriac regions, fright during sleep, and inability to urinate. Kidney abscess presents with distension from the feet up to the lower abdomen. (Lin Yi’s annotation on the *Daqi Lun* states that "feet below" should be read as "below the thighs." The *Qianjin Fang* states: For intestinal abscess, the lower abdomen becomes swollen and hard; pressing causes pain and frequent urination resembling strangury. Zhang Zhongjing stated: Intestinal abscess involves a hard and firm lower abdomen. Generally, lower abdominal pain with hardness indicates kidney abscess, while frequent urination resembling strangury indicates intestinal abscess; these belong to the category of lung and liver abscesses.) Stomach abscess is characterized by a rebellious and vigorous Renying pulse. (The full text is detailed later under the entry for Stomach Abscess.)
Differentiation of Internal Ulcers of Zang-Fu Organs:
Dull pain at the Zhongfu point indicates Lung Gangrene; slight elevation of the flesh at this site indicates Lung Carbuncle.
Dull pain at the Jueque point indicates Heart Gangrene; slight elevation of the flesh at this site indicates Heart Carbuncle.
Dull pain at the Qimen point indicates Liver Gangrene; slight elevation of the flesh at this site indicates Liver Carbuncle.
Dull pain at the Zhangmen point indicates Spleen Gangrene; slight elevation of the flesh at this site indicates Spleen Carbuncle.
Dull pain at the Jingmen point indicates Kidney Gangrene; slight elevation of the flesh at this site indicates Kidney Carbuncle.
Dull pain at the Zhongwan point indicates Stomach Gangrene; slight elevation of the flesh at this site indicates Stomach Carbuncle.
Dull pain at the Tianshu point indicates Large Intestine Gangrene; slight elevation of the flesh at this site indicates Large Intestine Carbuncle.
Dull pain at the Dantian point indicates Sanjiao Gangrene; slight elevation of the flesh at this site indicates Sanjiao Carbuncle.
Dull pain at the Guanyuan point indicates Small Intestine Gangrene; slight elevation of the flesh at this site indicates Small Intestine Carbuncle.
Huaizhong Dan (Loyalty Pill) is used to treat internal abscesses complicated by necrotic pus and blood, which are extremely foul-smelling, causing cold pain around the umbilicus and abdomen. This formula promotes the expulsion of pus and blood.
Angelicae Dahuricae Radix (Baizhi, 白芷) one liang, Root of Malva single-leaf red flower (Shuhuihua Gen, 蜀葵花根) one liang, Alum calcined (Bai Fan Ku, 白矾枯), Paeoniae Radix Alba (Baishao Yao, 白芍药) five qian.
Grind the above ingredients into powder, mix with melted beeswax to form pills the size of Chinese quinine seeds. Take thirty pills on an empty stomach with rice broth to expel pus and blood. After the pus and blood are completely expelled, administer Shixuan San (Ten-Accumulation Powder) to tonify. Avoid stimulant foods. (Another prescription: Cook crucian carp in lard and eat it to treat intestinal abscess. Another prescription: Calcinate Turtle Plastron until carbonized, grind into powder, and take orally.)