青蛇毒生腿肚下，形长三寸紫块僵，肾与膀胱湿热结，急针蛇头血出良。
【注】此证又名青蛇便，生于小腿肚之下，形长二三寸，结肿，紫块、僵硬，憎寒壮热，
大痛不食，由肾经素虚，膀胱湿热下注而成。蛇头向下者，毒轻而浅，急刺蛇头一半寸，出
紫黑血，随针孔搽拔疔散；外敷离宫锭，内服仙方活命饮，加黄柏、牛膝、木瓜。亦有
蛇头向上者，毒深而恶急，刺蛇头一、二寸，出紫黑血，针孔用白降丹细条插入五、六分，
外贴巴膏，余肿敷太乙紫金锭，内服麦灵丹，俟毒减退，次服仙方活命饮调和之。若毒入
腹，呕吐腹胀，神昏脉躁，俱为逆证。
\r青蛇毒图\p04-34a205.bmp\r
拔疔散（见齿部牙疔）
离宫锭 仙方活命饮 麦灵丹（俱见肿疡门）
白降丹 巴膏（俱见溃疡门）
太乙紫金锭（见胸博脾发疽）
接骨发如核桃形，腿肚之下硬胀疼，色红漫肿宜速溃，迟损筋脉缺踵行。
【注】此证生于腿肚之下，接骨之上，胫骨与足后跟骨相接处，故名接骨发，属膀胱
经湿热凝结而成。初如核桃，其硬如物打磕蹦之状，急胀微疼，色红漫肿，脓宜速溃，迟
则脓毒损筋，筋脉既伤，腿缺踵行。踵行者，不能全足践地，惟恃足指着力而行也。始终
内、外治法，俱按痈疽肿疡、溃疡门。
\r接骨发图\p04-34a206.bmp\r
青蛇毒生于小腿肚下方，形状长约三寸，呈紫色肿块且僵硬，由肾与膀胱湿热蕴结所致，急需针刺“蛇头”部位使血液流出，疗效良好。
【注】此证又名青蛇便，生长于小腿肚之下，形状长二三寸，结聚成肿，表现为紫色肿块、僵硬，伴有憎寒壮热（恶寒高热），剧烈疼痛且食欲不振，这是由于肾经素来虚弱，膀胱湿热下注所致。若“蛇头”向下，说明毒邪轻浅，急刺蛇头一半寸深，放出紫黑色血液，随针孔涂抹拔疔散；外部敷贴离宫锭，内部服用仙方活命饮，并加入黄柏、牛膝、木瓜。也有“蛇头”向上的情况，说明毒邪深重且病情危急，刺蛇头一至二寸深，放出紫黑色血液，在针孔处插入细条状的白降丹五至六分深，外部贴巴膏，其余肿胀处敷太乙紫金锭，内部服用麦灵丹，待毒势减退后，再服用仙方活命饮进行调和。如果毒邪进入腹部，出现呕吐腹胀、神志昏迷、脉象躁动，均属于逆证（预后不良）。
青蛇毒图
拔疔散（见齿部牙疔章节）
离宫锭 仙方活命饮 麦灵丹（均见肿疡门章节）
白降丹 巴膏（均见溃疡门章节）
太乙紫金锭（见胸博脾发疽章节）
接骨发形状如核桃，生于小腿肚下方，坚硬肿胀疼痛，颜色发红且漫肿，应当促使脓液迅速溃破，若延误时机则会损伤筋脉，导致脚跟缺失般的跛行（缺踵行）。
【注】此证生长于小腿肚下方，胫骨与足后跟骨相接之处（即跟腱附着点附近），因此得名接骨发，属于膀胱经湿热凝结而成。初期如同核桃大小，质地坚硬如同被物体撞击磕碰后的状态，紧急胀痛且轻微疼痛，颜色发红漫肿，脓液应当迅速溃破，若拖延则脓毒会损伤筋脉，一旦筋脉受伤，就会出现腿脚无法全足着地行走的“缺踵行”症状。“缺踵行”是指不能以全脚掌着地，只能依靠脚趾着力行走。整个病程的内治和外治方法，均按照痈疽肿疡、溃疡门的法则处理。
接骨发图
Qingshe Du (Green Snake Poison) arises below the calf, presenting as a long, stiff purplish mass approximately three cun in length. It is caused by the accumulation of damp-heat in the Kidney and Bladder meridians. Prompt pricking at the "snake head" to release blood yields good results.
[Note] This condition is also known as Qingshe Bian. It occurs below the calf, manifesting as a swelling approximately two to three cun long, characterized by a stiff, purplish mass. Symptoms include aversion to cold with high fever, severe pain, and loss of appetite. It results from inherent deficiency of the Kidney meridian combined with downward pouring of damp-heat from the Bladder meridian. If the "snake head" points downward, the toxin is mild and superficial; prick the snake head half a cun deep to release dark purple-black blood, then apply Batiding San (Extract Tumor Powder) around the needle hole. Externally apply Ligong Ding (Palace of Li Plaster), and internally administer Xianfang Huoming Yin (Immortal Formula for Saving Lives Decoction) supplemented with Huangbai (Phellodendri Cortex), Niuxi (Achyranthis Bidentatae Radix), and Mugua (Chaenomelis Fructus). In cases where the "snake head" points upward, the toxin is deep and the condition is critical; prick the snake head one to two cun deep to release dark purple-black blood. Insert a thin strip of Baijiang Dan (White Reduction Elixir) five to six fen deep into the needle hole. Externally apply Bagao (Ba Paste), and apply Taiyi Zijin Ding (Taiyi Purple Gold Plaster) to remaining swellings. Internally administer Mailing Dan (Mailing Pill). Once the toxin subsides, follow up with Xianfang Huoming Yin to harmonize the body. If the toxin enters the abdomen, causing vomiting, abdominal distension, coma, and a restless pulse, these are all adverse signs (ni zheng).
Qingshe Tu (Diagram of Qingshe Poison)
Batiding San (See Dental Section: Yating)
Ligong Ding, Xianfang Huoming Yin, Mailing Dan (All see Swollen Ulcer Section)
Baijiang Dan, Bagao (All see Open Ulcer Section)
Taiyi Zijin Ding (See Xiongbo Pi Fa Ju)
Jiegu Fa (Bone-Connecting Abscess) resembles a walnut in shape, occurring below the calf with hardness, swelling, and pain. The skin is red with diffuse swelling; it should be allowed to suppurate and rupture quickly. Delay will damage the tendons and vessels, resulting in an inability to walk normally due to heel deficiency (que zhong xing).
[Note] This condition arises below the calf, at the junction of the tibia and the calcaneus (heel bone), hence the name Jiegu Fa. It is caused by the coagulation of damp-heat in the Bladder meridian. Initially, it is walnut-sized, hard as if bruised by impact, with urgent swelling and slight pain. The color is red with diffuse swelling. Suppuration should occur rapidly; delay allows pus and toxin to damage the tendons. Once the tendons are injured, the patient exhibits "que zhong xing," meaning they cannot place their entire foot on the ground but must rely on their toes to walk. Both internal and external treatments throughout the course of the disease follow the principles outlined in the sections on Carbuncles, Sores, Swollen Ulcers, and Open Ulcers.
Jiegu Fa Tu (Diagram of Jiegu Fa)