In Chinese medicine, the principal secretions and excretions from the body are phlegm (from nose and/or throat), vomit, urine and faeces (stool). The principal indications are thus: Phelgm clear, thin denotes cold; yellow, sticky denotes heat; large quantity and loose denotes dampness; bloody denotes heat injury to Lung. Vomit thin, watery, clear or vomiting of food without a sour taste denotes cold and deficient stomach""qi; sour denotes Stomach heat; yellow, bitter denotes liver heat or gall Bladder heat. Urine reluctant, thin, pale, clear denotes cold; scanty, dark, reddish denotes heat; cloudy denotes dampness. Faeces dry denotes dryness; with mucous and blood denotes fire pernicious influences; diarrhoea denotes dampness.