Urine Leukocyte Test: What the Result Means

Leukocytes can enter urine when the bladder, urethra, ureters, or kidneys are irritated. A positive screening result can occur with a urinary tract infection, and symptoms such as burning, urgency, frequent urination, cloudy urine, or lower abdominal discomfort help give it context. A kidney infection may also cause urinary white cells, particularly when fever, chills, nausea, or pain in the side or back is present. The result alone does not identify the cause, and contamination from skin or vaginal secretions can affect a sample.

Follow the laboratory instructions and tell the clinician about urinary symptoms, pregnancy, recent antibiotics, and medicines. A clean-catch midstream sample can reduce contamination. Your clinician may compare the strip result with urine microscopy or culture before deciding whether treatment is appropriate. Do not start leftover antibiotics; treatment depends on the likely cause and test findings. Difficulty emptying the bladder can also need assessment, including in people with Benign Prostatic Hyperplasia.

Arrange prompt medical assessment for fever, shaking chills, vomiting, pain in the side or back, visible blood in urine, or feeling markedly unwell, because these features can accompany a kidney infection. Seek urgent help if you cannot pass urine, become confused, or are rapidly worsening. Mild urinary symptoms still merit review if they persist, recur, or occur during pregnancy.

Ask whether the sample was clean, whether a culture or microscopy is needed, and how your symptoms change the interpretation. You can also ask when results are expected, which warning signs should prompt reassessment, and whether an Urine Test or Antibiotic Treatment is appropriate.