Urinary tract infections (UTIs) commonly cause a burning sensation during urination, frequent urge to urinate, and passing small amounts of urine. Patients may notice cloudy, dark, or strong-smelling urine, sometimes with blood (hematuria). Lower abdominal or pelvic pain is typical in bladder infections, while fever, chills, nausea, vomiting, and flank pain suggest kidney involvement (pyelonephritis). Elderly individuals may present with confusion or altered mental status. Prompt diagnosis and treatment are essential to prevent complications. Severe or recurrent infections may require intravenous antibiotics sourced from a reliable ceftriaxone injection supplier to ensure quality and therapeutic effectiveness.