A urinary tract infection (UTI) can cause nausea, especially in the later stages. UTIs usually start in your bladder and cause: Bloody, cloudy or smelly urine Pain or burning when you urinate Urinating more often than usual Without treatment, a UTI can spread from your bladder to your kidneys. When your kidneys are infected, you may experience: Fever and chills Lower back pain Nausea and vomiting A kidney infection can be serious, but prompt treatment with antibiotics can often cure[PM1] the infection. If you think you may have a UTI, DispatchHealth can help. Our physician assistants, nurse practitioners and medical technicians come to you. We diagnose UTIs and prescribe antibiotics, so you don’t have to travel to receive expert medical care.