Which of the following is NOT a common sign of a lower urinary tract infection?

Gross hematuria, which refers to the presence of visible blood in the urine, is not typically a common sign of a lower urinary tract infection (UTI). While lower UTIs can indeed cause various symptoms, the classic signs include increased urinary frequency, localized pelvic pain, and painful urination, all of which are associated with the irritation and inflammation of the bladder and urethra caused by the infection.

Gross hematuria may occur in some cases, but it is less common and can indicate other more serious underlying conditions, such as kidney stones, trauma, or malignancies. Therefore, while gross hematuria can be a symptom related to urinary issues, it is not typical for lower UTIs, making it a less common presentation than the other symptoms listed.