Soy sauce color of urine may be caused by hemolytic anemia, serosanguineous disease, jaundice hepatitis, paroxysmal sleep hemoglobinuria and other diseases. 1. Hemolytic anemia: the occurrence of this disease is related to erythrocyte enzyme defects, globulin synthesis disorders, pathogenic microbial infections, hypersplenism, extensive burns and other causes, the patient will appear jaundice, fever, anemia manifestations and other symptoms. Through the examination, it can be found that the urine contains ferric yellow pigment, which can be manifested as urine soy sauce color. 2. Fava bean disease: this disease is mainly caused by the lack of erythrocyte glucose 6 phosphate dehydrogenase, often due to eating fava beans or fava bean products and other factors, leading to anorexia, headache, hemoglobinuria and other symptoms, so the urine will be soy sauce color. 3. Jaundice hepatitis: the common causes of this disease include viral infection, acute alcohol poisoning, drug damage, autoimmune damage and so on. It can be triggered by overwork, overeating and other factors. When the patient’s condition develops to the jaundice stage, the urine will become yellow and deepen in color, and so on, so there is a situation of soy sauce-colored urine. 4. Paroxysmal sleep hemoglobinuria: paroxysmal sleep hemoglobinuria is an acquired hematopoietic stem cell clonal disease. The onset of the disease is insidious and slow, with anemia as the first symptom more, can be manifested as red wine or red tea color, soy sauce-like urine, infection, thrombosis, kidney damage. There are many causes of soy sauce-colored urine, you should go to the hospital, improve the examination, and clarify the cause of the disease.