附骨疽者，俗呼为贴骨痈，生于大腿外侧骨上，此阴寒之证也。凡人环跳穴（足少阳穴
名）处无故酸痛，久而不愈者，便是此证之兆。盖由元气素亏，风邪寒湿乘虚入里，络脉被
阻失和，致血凝气滞而发。始时臀腿间筋骨酸疼，甚者曲伸不能转侧，不红不热，皮毛不变
，身体乍寒乍热，而不能作汗，积日累月，渐觉微微肿起，阴变为阳，寒化为热，热甚则腐
肉为脓，此疽已成也。谓之附骨者，以其毒瓦斯深沉附着于骨也。肾主骨，肾经阳和之气不足
，故肾部隧道骨缝之间，气不宣行，而阴寒之邪得深袭伏结，而阴血凝滞，内郁湿热，为溃
为脓。古人有用附子者，以温补肾气，而又能行药力、散寒邪也。大略此证初起治法，宜用
温经通络、宣达阳和、渗湿补虚为主。若脉见滑数，按之软熟，脓已成也，速宜开之，毋使
久留延漫，否则全腿俱溃矣。至出脓之后，须温养气血、扶胃和营，方能速愈，切不可用寒
凉外敷内服，贻害非小。
附骨痰者，亦生于大腿之侧骨上，为纯阴无阳之证。小儿三岁五岁时，先天不足，三阴
亏损，又或因有所伤，致使气不得升，血不得行，凝滞经络，隐隐彻痛，遂发此疡。初起或
三日一寒热，或五日一寒热，形容瘦损，腿足难以屈伸，有时疼痛，有时不痛，骨酸漫肿，
朝轻暮重，久则渐渐微软，似乎有脓，及刺破后，脓水清稀，或有豆腐花块随之而出，肿
仍不消，元气日衰，身体缩小，而显鸡胸鳖背之象，唇舌干焦，二便枯秘，或脾败便泄，饮
食少纳，渐成童痨而毙。又大人亦有之，男则系房劳不禁，色欲过度，肾水干涸而生；女则
由真阴不足，经枯血闭而发。起时腰痛足软，腿膝酸楚，渐渐腿股肿胀，又名股阴疽；久则
成脓，或腰间肾俞穴，肿硬色白，即名肾俞虚痰。二证溃脓后，皆不能收功。
附骨疽，俗称贴骨痈，发生于大腿外侧的骨骼上，属于阴寒性质的病证。凡是环跳穴（足少阳胆经穴位名）部位无故出现酸痛，且长期不愈的，就是此病的征兆。这是因为人体元气素来亏虚，风邪、寒湿之邪乘虚侵入体内，导致络脉受阻、气血失和，致使血液凝滞、气机阻滞而发病。起初臀部与腿部之间的筋骨感到酸疼，严重的甚至无法弯曲伸展或翻身侧卧，患处不红不热，皮肤颜色无变化，身体忽冷忽热，但无法出汗。经过日积月累，逐渐感觉微微肿起，病情由阴转阳，寒邪化为热毒，热毒炽盛则腐蚀肌肉化为脓液，此时疽毒已经形成。称为“附骨”，是因为其毒气深沉，附着于骨骼所致。肾主骨，若肾经中温煦阳和之气不足，肾部经络隧道及骨缝之间气机不能宣通，阴寒之邪便得以深入侵袭并伏结凝聚，导致阴血凝滞，内部郁积湿热，最终溃烂化脓。古人治疗时有时使用附子，是为了温补肾气，同时又能推动药力运行、驱散寒邪。大抵此病初起的治法，应以温通经络、宣达阳和之气、渗利湿气并补益虚损为主。如果脉象呈现滑数，按之柔软熟透，说明脓液已经形成，应当迅速切开排脓，不要让脓液久留蔓延，否则整个腿部都会溃烂。至于排出脓液之后，必须温养气血、扶持胃气、调和营卫，才能迅速痊愈，切不可使用寒凉药物外敷或内服，否则危害极大。
附骨痰，也发生在大腿侧面的骨骼上，属于纯阴无阳的病证。小儿在三岁至五岁时，因先天禀赋不足，三阴经亏损，或者因为受到外伤，导致气机不能上升，血液不能正常运行，凝滞于经络之中，产生隐隐作彻骨的疼痛，从而引发此疮疡。初起时可能每隔三日或五日发作一次寒热，形体消瘦受损，腿脚难以屈伸，有时疼痛，有时不痛，骨骼酸痛且弥漫性肿胀，早晨轻晚上重。时间久了，局部渐渐变得微软，看似有脓，刺破后流出清稀的脓水，有时伴有豆腐花样的块状物随之而出，肿胀仍不消退。元气日益衰败，身体缩小，呈现出鸡胸龟背的畸形，嘴唇舌头干燥焦裂，大小便枯涩秘结，或者脾脏败坏导致腹泻，饮食摄入减少，逐渐演变为童痨（儿童虚劳重症）而死。成年人也会得此病，男性多因房事不节制、色欲过度，导致肾水干涸而生；女性则因真阴不足，月经枯竭、血液闭阻而发。发病时腰部疼痛、双脚软弱，腿膝酸楚，渐渐大腿股部肿胀，又名股阴疽；日久成脓，若在腰间肾俞穴处出现肿胀坚硬、肤色苍白，即名为肾俞虚痰。这两种证候在溃破流脓后，都难以治愈收口。
Fugu Ju (Bone-Adhering Carbuncle), commonly known as Tie Gu Yong (Bone-Sticking Abscess), occurs on the bone of the lateral aspect of the thigh. This is a syndrome characterized by Yin-cold. Whenever there is unexplained soreness and pain at the Huantiao (GB30, Acupoint of Foot-Shaoyang Gallbladder Meridian) that persists for a long time without healing, it is a sign of this condition. This arises because the primordial Qi (Yuan Qi) has been deficient since early life; Wind, Cold, and Dampness pathogens take advantage of this deficiency to enter the interior. The collateral vessels become obstructed and lose harmony, leading to blood stasis and Qi stagnation, which triggers the disease. Initially, there is soreness and pain in the tendons and bones between the buttocks and thighs. In severe cases, flexion and extension are impossible, and turning over is difficult. The area is neither red nor hot, and the skin color remains unchanged. The body experiences alternating chills and fever, yet sweating does not occur. Over days and months, a slight swelling gradually appears. The condition transforms from Yin to Yang, and cold transforms into heat. When heat becomes excessive, flesh is腐rified into pus, indicating that the carbuncle has fully formed. It is called "Fugu" (Bone-Adhering) because its toxic qi is deep-seated and adheres to the bone. The Kidneys govern the bones. If the warm and harmonious Yang Qi of the Kidney meridian is insufficient, Qi cannot circulate freely within the tunnels of the Kidney region and between bone fissures. Consequently, Yin-cold pathogens can deeply invade, lodge, and condense, causing Yin-blood stasis. Internal accumulation of Damp-Heat eventually leads to ulceration and pus formation. Ancient practitioners sometimes used Fuzi (Aconiti Lateralis Radix Praeparata) to tonify Kidney Qi, while also promoting the action of other herbs and dispersing Cold pathogens. Generally, the treatment principle for the initial stage of this condition should focus on warming the meridians and unblocking collaterals, disseminating warm and harmonious Yang Qi, draining Dampness, and tonifying deficiency. If the pulse is slippery and rapid, feeling soft and ripe upon palpation, it indicates that pus has formed. One must promptly incise and drain it to prevent prolonged retention and spreading; otherwise, the entire leg may ulcerate. After pus drainage, one must warmly nourish Qi and Blood, support Stomach Qi, and harmonize Ying (Nutritive) and Wei (Defensive) levels to achieve a swift recovery. One must absolutely avoid using cold-natured herbs for external application or internal consumption, as this would cause significant harm.
Fugu Tan (Bone-Adhering Phlegm) also occurs on the bone of the lateral aspect of the thigh. It is a syndrome characterized by pure Yin with no Yang. Children aged three to five years old, suffering from congenital insufficiency and depletion of the Three Yin meridians, or due to trauma, may experience impaired ascending of Qi and stagnant circulation of Blood. This stagnation in the collaterals causes deep, penetrating pain, triggering this ulcerative condition. In the early stage, there may be alternating chills and fever every three or five days. The patient's appearance becomes emaciated, and leg and foot movement is difficult. Pain comes and goes intermittently. There is bone soreness and diffuse swelling, which is lighter in the morning and heavier in the evening. As time passes, the area gradually becomes slightly soft, resembling an abscess. Upon puncture, clear and thin pus flows out, sometimes accompanied by curd-like clumps. The swelling does not subside. Primordial Qi declines daily, the body shrinks, and deformities such as pigeon chest and turtle back appear. Lips and tongue become dry and scorched, urine and stool become scanty and constipated, or Spleen failure leads to diarrhea. Food intake decreases, gradually progressing to Tong Lao (Childhood Consumption/Tuberculosis) and death. Adults can also suffer from this. In men, it results from unrestrained sexual activity and excess desire, drying up Kidney Water. In women, it arises from insufficiency of True Yin, leading to amenorrhea and blood closure. Onset presents with lower back pain and weak legs, soreness in the knees and thighs, followed by gradual swelling of the thigh, also known as Guyin Ju (Thigh-Yin Carbuncle). If pus forms after a long duration, and swelling and hardness with pale skin color appear at the Shenshu (BL23, Kidney Shu) acupoint on the waist, it is named Shenshu Xu Tan (Kidney Shu Deficiency Phlegm). Both conditions are difficult to heal and close after ulceration and pus discharge.