Heat Shower Clear Granules is a kind of Chinese patent medicine, which usually does not cause weight loss after taking it. 1. Heat Shower Clear Granules is made of Polygonum cepa as the main ingredient, which has the efficacy of clearing away heat and fire (removing heat and fire from the body), diuretic and diaphoretic (improving the problem of dribbling of urine, and the problem of small amount and inaccessibility of urine), and is used for heat shower caused by dampness-heat in the lower Jiao (dampness-heat evils and heat evils encroaching on the intestines, bladder, and pubic region, etc), with the symptoms of frequent urination, urgency of urination and painful urination; and urinary tract infection and pyelonephritis with the symptoms mentioned above. The adverse reactions and contraindications of the drug are not clear. There are no clinical reports of weight loss after taking this drug. 2. There are many reasons for weight loss, which should be determined by combining the specific physical condition of the patient and medical examination, such as strenuous exercise, irrational diet, malnutrition, dehydration, endocrine disorders, malignant tumors and other aspects of the causes can lead to weight loss. Patients with significant weight loss are advised to go to regular hospitals in time for treatment under the guidance of specialized physicians.