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The Five Labors (Wu Lao) include: First is Lung Labor, characterized by shortness of breath, facial edema, and anosmia; second is Liver Labor, characterized with dry and dark complexion, bitter taste in the mouth, mental restlessness, ability to lie alone, and blurred vision; third is Heart Labor, characterized by mental confusion, forgetfulness, difficult or constipated stools, occasionally loose stools resembling duck feces, and oral ulcers; fourth is Spleen Labor, characterized by a stiff and bitter tongue root, and inability to swallow saliva; fifth is Kidney Labor, characterized by difficulty in bending and extending the back, dysuria, reddish-yellow urine with dribbling, pain within the penis, damp sores on the scrotum, and fullness and urgency in the lower abdomen.

The Six Extremities (Liu Ji) include: First is Qi Extremity, causing internal deficiency, insufficiency of the Zang organs, an excess of pathogenic factors, a deficiency of healthy Qi, and reluctance to speak; second is Blood Extremity, causing pallor, loss of eyebrows and hair, mental confusion, and forgetfulness; third is Tendon Extremity, causing frequent muscle spasms, pain in the fingernails, fatigue preventing prolonged standing; fourth is Bone Extremity, causing emaciation, toothache, vexing heat and pain in the hands and feet, inability to stand, and reluctance to move; fifth is Muscle Extremity, causing emaciation without luster, and food failing to transform into muscle tissue; sixth is Essence Extremity, causing shortness of breath, a sensation of internal emptiness with shallow breathing, insufficiency of Qi in the five Zang organs, hair loss, sadness, and forgetfulness.

The Seven Injuries (Qi Shang) include: First, overeating injures the Spleen, leading to belching, drowsiness, and sallow complexion; second, great anger causes Qi rebellion injuring the Liver, leading to shortness of breath and dim vision; third, strenuous lifting or sitting long on wet ground injures the Kidneys, reducing Essence, causing lower back pain, cold limbs, and coldness in the lower Jiao; fourth, external cold exposure or drinking cold beverages injures the Lungs, causing shortness of breath, cough, and nasal congestion; fifth, worry and overthinking injure the Heart, causing distress from sudden fright, forgetfulness, and emotional instability; sixth, wind, rain, cold, and heat injure the body form, causing withered skin and premature aging; seventh, unregulated fear injures the Will (Zhi), causing mental恍惚 (absent-mindedness) and unhappiness.

There are also Will Labor, Thought Labor, Heart Labor, Worry Labor, and Emaciation Labor, collectively referred to as the Five Labors. Yin-cold, impotence, interior tension with cold and scanty essence, dampness in the genital region, clear semen, painful frequency of urination, and erectile dysfunction during intercourse are collectively referred to as the Seven Injuries. Various classifications and distinctions become increasingly complex and chaotic; mechanically applying these categories leads to significant diagnostic errors, representing theories that fail to seek the root cause. Ultimately, the five Zang organs must be distinguished, the severity of conditions must be identified, and the relationships among Qi, Blood, Yin, Yang, Water, and Fire must be understood, leaving no gaps in the treatment of deficiency syndromes. If one forcibly imposes labels while pretending to understand, how could it not result in fatal consequences at a moment's notice?