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1. Heat accumulation in the Bladder (Bladder) causes *Long-Bi* (difficulty in urination); cold deficiency of the Bladder causes *Yiniao* (enuresis/involuntary urination) and *Bujin* (incontinence). "Bi" refers to complete urinary retention with no drops passing, accompanied by distension, fullness, pain, and difficulty extending the lower abdomen. "Long" refers to dribbling urine that passes only drop by drop, with astringent pain in the urethra and frequent, urgent voiding. Urination without awareness is called *Yiniao*; awareness of the need to urinate but inability to control it is called *Bujin*. Regarding severity: mild heat accumulation in the Bladder manifests as *Long*, while severe cases manifest as *Bi*. Mild cold deficiency of the Bladder manifests as *Yiniao*, while severe cases manifest as *Bujin*. In "Bi", urine is completely retained with no drops passing, hence the distension and painful fullness of the lower abdomen. In "Long", urine dribbles out drop by drop, occurring dozens of times a day or frequently without limit, hence the astringent pain in the urethra. Unconscious urination is termed *Yiniao*. Consciousness present but inability to retain urine is termed *Bujin*.

2. Vomiting and hiccups accompanied by urinary retention constitute *Guan-Ge* (Obstruction and Rejection syndrome); if sweating occurs only on the head, life is imminent peril. In *Shanghan* (Cold Damage), mania and dizziness accompanied by enuresis indicate a fatal prognosis; urinary retention with a fine and choppy pulse also indicates fatality.
[Note]: Upper vomiting and hiccups preventing intake, and lower urinary obstruction, signify the mutual rejection of Yin and Yang Qi (*Guan-Ge*). If sweating is confined to the head, it indicates the exhaustion of Yang Qi, hence the peril to life. Mania and dizziness in *Shanghan* belong to excessive Yang pathogenic factors; enuresis belongs to Yin failing to hold fast. If urinary retention is accompanied by a fine and choppy pulse, it indicates the exhaustion of Yin fluids as well; thus, all these conditions are fatal.

3. Use the Yin-Yang moxibustion/ironing method on the navel with scallion white and musk; alternating hot and cold ironing allows urine to flow spontaneously. To promote upper release, use Tongcao (Akebia Caulis) and scallion decoction followed by induced vomiting; to promote external release, use scallion steam to induce sweating and unblock urination.
[Note]: Take one jin (approx. 500g) of scallion white, finely chopped, mix with five fen (approx. 1.8g) of Moschus (Musk), divide into two bags, and place on the navel. First, iron with a charcoal-heated iron for half an incense stick's duration, then replace with one bag and iron with a cold-water-cooled iron. Alternate ironing until urination resumes. If various oral medications fail, or if taken medicine is immediately vomited, or if purgatives fail to relieve constipation, use the "Promote Upper Release" method: Decoct Akebia Caulis (Tongcao) and old scallion, drink the soup, wait a moment, then induce vomiting. Repeat medication and vomiting until urination resumes. If various oral medications fail, or if there is no sweating, use the "Promote External Release" method: Pour scallion decoction into a wooden tub, have the patient sit on a stool inside, submerging up to the navel. Tie a skirt around the waist to cover the tub opening. After a short time, when sweating occurs, urine will discharge spontaneously. Do not leave the tub when the urge to urinate arises; urinate within the tub, lest leaving exposes the body to cold air which may cause the urine to retreat (retention again).