###Human: What can be done for fever with sore throat and reddish brown urine? ###Assistant: Hi. It could be a viral fever followed by acute glomerulonephritis if there is blood in urine, judging from the reddish brown urine you mentioned. Or it could be a urinary tract infection. In both cases, you must get a urine routine and microscopic examination plus a complete blood count test done initially. If you have other symptoms like abdominal pain, vomiting, etc, you must let me know. For now stay hydrated and get the tests done as soon as possible. If you continue to pass blood with urine, you need to go to the ER.