Cold without fever means that the patient only feels cold but there is no fever. It is usually caused by direct invasion of pathogenic cold into the interior which stagnates yangqi and prevents it from moving outwards; or by decline of yangqi and lack of warmth of the body. According to the onset, duration, cause and pathogenesis, cold without fever can be further divided into aversion to cold in new disease and fear of cold in chronic disease.
 
Aversion to cold in new disease:
Aversion to cold in new disease is caused by serious invasion of cold directly into the viscera which stagnates yangqi and deprives the body of warmth. Sudden aversion to cold with cold limbs accompanied by cold abdominal pain or dyspnea with sputum rale pertains to cold syndrome of internal sthenia.
 
Fear of cold in chronic disease:
Fear of cold in chronic disease is usually caused by decline of yangqi and lack of warmth of the body. The patient frequently fears cold and the limbs are not warm, usually relieved with warmth, with light-colored and tender tongue as well as deep, slow and weak pulse. Such pathological conditions signify cold syndrome of internal asthenia.