1. In Chinese medicine, heat and cold fears belong to the weakness of the body and are common in women, who suffer from Qi deficiency, blood deficiency and Yin deficiency, resulting in heat and cold fears. 2. 3. Immune system diseases and connective tissue diseases may also show the above symptoms, such as rheumatism, rheumatoid arthritis, rheumatoid arthritis, and connective tissue diseases, such as dermatomyositis and systemic lupus erythematosus, all of which have a tendency to be hot and cold. 4. Blood system diseases, such as severe anemia and tumors, may also show the above symptoms and performance.