Taking a rivaroxaban tablets with blood in the urine may be caused by the adverse reaction of the drug, or kidney disease and so on, it is recommended to consult a doctor in time to clarify the cause of the disease. The instruction of rivaroxaban tablets points out that the common adverse reaction of this product is bleeding, which can cause intracranial, intraocular, retroperitoneal, intra-articular and any other bleeding. Therefore, blood in the urine after taking rivaroxaban tablets may be an adverse reaction to the drug. Rivaroxaban tablets can be used to prevent venous thrombosis, pulmonary embolism, etc. It is contraindicated in people who are allergic to the product and have obvious active bleeding. The drug should be used in accordance with medical advice. The cause of blood in urine may also be caused by kidney diseases, urinary tract infections, kidney stones, urinary tract tumors and other etiologies. Therefore, the appearance of blood in the urine, should seek medical attention to clarify the cause of the disease.