汗证是指人体阴阳失调,营卫不和,腠理开阖不利致汗液外泄的病证。根据汗出之特点,汗证又可分为自汗、盗汗、绝汗、战汗、黄汗等,而临床又以自汗、盗汗极为多见,且常以主证或兼证出现在疾病的发生发展过程中。古人云:“自汗者属阳虚,盗汗者属阴虚。”治自汗常宗实表补阳,治阴虚多循降火滋阴。然以余观之,自汗亦有属阴虚者,盗汗亦可见阳虚者,且致汗原因颇多,不仅阳虚、阴虚,且血虚、血淤、痰、湿、邪在半表半里皆能令人汗出。然自汗属阴虚者,盗汗属阳虚者, Khan syndrome refers to the yin and yang imbalance in the human body, the health care industry does not reconcile, and the disease symptoms of unfavorable perspiration-induced leakage. According to the characteristics of sweating, sweat syndrome can be divided into spontaneous sweating, night sweats, sweating, sweating, yellow sweat, etc., while the clinical practice of spontaneous sweating and sweating is extremely common, and often occurs with the main card or cardinal symptoms in the disease. The development of the process. The ancients said: “Self-sweat persons are yang, and night sweats are yin deficiency.” Governance self-smokers often make up the table and cure yin deficiency and reduce fire and nourish yin. Of course, in terms of Yu Guanzhi, self-sweat also belongs to yin deficiency, night sweats can also be seen as yang deficiency, and there are many reasons for sweating, not only yang deficiency and yin deficiency, but also blood deficiency, blood stasis, phlegm, wetness and evil in the half. The half of the table can make people sweat. However, spontaneous sweat is yin deficiency, and night sweats are yang deficiency.