北人卫德新，因之析津，冬月饮寒则冷，病腰常直，不能屈伸，两足沉重，难
于行步。途中以床舁递，程程问医，皆云肾虚，以苁蓉、巴戟、附子、鹿茸皆用之，大便反
秘，潮热上周，将经岁矣。乃乞拯于戴人。戴人曰∶此疾十日之效耳！卫曰∶一月亦非迟。戴人
曰∶足太阳经血多，病则腰似折， 如结， 如裂。太阳
所至为屈伸不利。况腰者。肾之府也，身中之大关节，今既强直而不利，宜咸以软之，顿服
则和柔矣。《难经》曰∶强力入房则肾伤而髓枯，枯则高骨乃坏而不用，与此用同。今君之证
，太阳为寒所遏，血坠下滞腰间也，必有积血，非肾也。节次以药，可下数百行，约去血
一、二斗；次以九曲玲珑灶蒸之，汗出三、五次而愈，初蒸时至五日，问曰∶腹中鸣否？
未也。至六日觉鸣，七日而起，以能揖人。戴人曰∶病有热者勿蒸，蒸则损人目也。
律科王敏之，病寒疝，脐下结聚如黄瓜，每发绕腰急痛不能忍。戴人以舟车丸
、猪肾散，下四、五行，觉药绕病三、五次而下，其泻皆水也。猪肾、甘遂皆苦寒。经言∶以
寒治寒，万举万全。但下后忌饮冷水及寒物，宜食干物，以寒疝本是水故也。即日病减八分，食进一倍。
又数日，以舟车丸百余粒，通经散四、五钱，服之利下。候三、四日，又服舟车丸七、八十
粒，猪肾散三钱，乃健步如常矣。
一僧病疝，发作冷气上贯齿，下贯肾，紧若绳挽两睾，时肿而冷。戴人诊两手，脉细而弱。断
之曰∶秋脉也。此因金气在上，下伐肝木，木畏金抑而不伸，故病如是。肝气
磅因礴，不能下荣于睾丸，故其寒，实非寒也。木受金制，传之胃土，胃为阳明，故上贯齿，病非齿之病
。肝木者，心火之母也，母既不伸，子亦屈伏，故下冷而水化乘之。经曰∶木郁则达之
，土郁则泄之。令涌泄四次，果觉气和，睾丸痒而暖。戴人曰∶气已入睾中矣。以茴香、
木茂之药，使常服之，首尾一月而愈。
北方的卫德新，前往析津（今北京一带），冬天喝了冷水受寒，导致腰部僵硬笔直，无法弯曲伸展，双腿沉重，行走困难。途中让人用床抬着走，每到一个地方就求医问药，医生们都说是肾虚，使用了肉苁蓉、巴戟天、附子、鹿茸等药，结果大便反而更加秘结，潮热上冲，这样持续了一年多。于是向戴人（张从正的号）求救。戴人说：“这个病十天就能见效！”卫德新说：“一个月也不算晚。”戴人说：“足太阳膀胱经血多，发病时腰像要折断一样，拘急疼痛，像被捆绑撕裂一样。太阳经受邪会导致屈伸不利。况且腰是肾的府邸，也是身体的大关节，现在既僵硬强直又不灵活，应该用咸味药物来软化它，一次性服用后就会变得柔和。《难经》说：强力行房会损伤肾脏导致髓海枯竭，枯则高骨毁坏而不能使用，这与你的情况用药原理相同。现在你的证候，是太阳经被寒气遏制，血液下坠停滞在腰间，必然有瘀血积聚，并非肾虚。分次服药攻下，可以排出数百行粪便，大约去除一、二斗瘀血；接着用九曲玲珑灶进行蒸疗，出汗三、五次就好了。刚开始蒸的时候到第五天，我问你：肚子里有鸣响吗？还没有。到了第六天感觉到鸣响，第七天就能起床，能够向人行礼了。戴人说：病人如果有热象不要蒸，蒸了会损害人的眼睛。”
律科王敏之，患有寒疝，脐下结块聚集成像黄瓜形状，每次发作时环绕腰部剧烈疼痛难以忍受。戴人用舟车丸、猪肾散治疗，服后腹泻四、五行，感觉药力围绕病灶运行三、五次后才下行，泻下的都是水样便。猪肾、甘遂都是苦寒之品。经文说：用寒凉法治寒病，万无一失。但泻下后要忌饮冷水及寒性食物，宜吃干性食物，因为寒疝本来就是因为水湿所致。当天病情减轻了八分，食欲增加了一倍。又过了几天，服用舟车丸一百多粒，通经散四、五钱，服后有利下反应。等到三、四天后，又服用舟车丸七、八十粒，猪肾散三钱，于是脚步轻健如常了。
有一位僧人患疝气，发作时冷气上贯牙齿，下贯肾脏，阴囊紧缩如同绳索拉扯两个睾丸，时而肿胀且发冷。戴人诊察两手脉象，脉细而弱。判断说：这是秋季的脉象。这是因为金气在上，向下克制肝木，肝木畏惧金的抑制而不能舒展，所以出现这样的病症。肝气郁结磅礴，不能下行滋养睾丸，所以感到寒冷，其实并不是真正的寒证。肝木受到金的制约，传变影响胃土，胃属阳明经，所以上行贯通牙齿，病根不在牙齿。肝木是心火的母亲，母亲不能舒展，儿子也会屈伏，所以下部发冷而水气乘虚而入。经文说：木郁结就要疏达它，土郁结就要泄导它。令其采用涌吐和泻下法各四次，果然觉得和气通畅，睾丸发痒且温暖。戴人说：“气已经进入睾丸中了。”用茴香、温燥的药物，让他长期服用，前后一个月痊愈。
Wei Dexin, a northerner, traveled to Xijin (modern-day Beijing). In winter, he drank cold water and suffered from cold, resulting in a stiff, straight waist that could not bend or extend, with heavy legs making walking difficult. He was carried on a bed along the way, seeking medical advice at every stop. All physicians claimed it was Kidney deficiency and prescribed Cistanche Herba (Rongshou), Morinda Officinalis Root (Baji), Aconite Lateralis Radix Praeparata (Fuzi), and Deer Antler Glue (Lurong). However, his constipation worsened, tidal fever rose upward, and this persisted for over a year. He then sought help from Dairen (Zhang Congzheng's courtesy name). Dairen said, "This illness will show effects within ten days!" Wei replied, "A month is not too late." Dairen explained, "The Foot-Taiyang Bladder Meridian contains abundant blood; when diseased, the waist feels as if broken, constrained, and torn. Afflictions of the Taiyang meridian lead to difficulty in bending and extending. Moreover, the waist is the mansion of the Kidneys and a major joint of the body. Since it is now stiff and immobile, one should use salty substances to soften it; taking it in one dose will restore flexibility. The *Nan Jing* states: 'Excessive sexual activity damages the Kidneys and depletes Marrow; depletion leads to the destruction of high bones and loss of function,' which shares the same therapeutic principle as your case. Currently, your condition involves the Taiyang meridian being obstructed by Cold, causing blood to sink and stagnate in the waist, indicating blood stasis accumulation rather than Kidney deficiency. Sequential purgation can expel hundreds of bowel movements, removing approximately one or two *dou* of stagnant blood. Subsequently, steaming therapy using a nine-curved perforated stove should be applied; sweating three to five times will cure it. During the initial steaming period, on the fifth day, I asked you: 'Is there rumbling in the abdomen?' You said no. On the sixth day, you felt rumbling, and by the seventh day, you could rise and bow to people. Dairen noted: 'Do not apply steaming therapy if the patient has Heat signs, as it may damage the eyes.'"
Wang Minzhi, an official of the Law Department, suffered from Cold Hernia (*Han Shan*). A mass gathered below the umbilicus, resembling a cucumber, causing severe, unbearable pain encircling the waist during attacks. Dairen treated him with *Zhouche Wan* (Boat Cart Pill) and *Zhushen San* (Pig Kidney Powder). After four or five bowel movements, he felt the medicinal force circulate around the lesion three to five times before descending; the excretion was entirely watery. Both Pig Kidney and Kansui Root are bitter and cold. The Classics state: "Treating Cold with Cold ensures success in every attempt." However, after purgation, one must avoid cold water and cold foods, preferring dry foods, because Cold Hernia originates from Water-Dampness. The disease diminished by 80% that day, and appetite doubled. Several days later, he took over one hundred pills of *Zhouche Wan* and 4-5 qian of *Tongjing San*, resulting in purgation. After three to four days, he took another 70-80 pills of *Zhouche Wan* and 3 qian of *Zhushen San*, after which his gait became normal and vigorous.
A monk suffered from Hernia. During attacks, cold qi penetrated upwards to the teeth and downwards to the Kidneys, with the scrotum tightening as if pulled by ropes, swelling intermittently and feeling cold. Dairen palpated both wrists and found the pulse thin and weak. He diagnosed, "This is an Autumn pulse. It arises because Metal Qi is superior above, suppressing Liver Wood below. Liver Wood fears Metal's restraint and cannot extend, hence these symptoms. The Liver Qi is congested and cannot descend to nourish the testicles, causing the sensation of cold, which is actually not true Cold. Liver Wood, constrained by Metal, transmits to Stomach Earth. The Stomach belongs to the Yangming channel, so the pathogen ascends to the teeth; the pathology does not originate in the teeth itself. Liver Wood is the mother of Heart Fire; if the mother cannot extend, the son also becomes suppressed, leading to lower cold and Water Qi exploiting the weakness. The Classics state: 'When Wood is depressed, vent it; when Earth is depressed, drain it.' By inducing vomiting and purgation four times each, he indeed felt harmonious Qi, and the testicles became itchy and warm. Dairen said, 'The Qi has entered the testicles.' He prescribed Fennel Fruit and acrid-warm herbs for long-term consumption, curing him within a month."