Late pregnancy urine wiping with light blood color may be related to the first sign of labor, urinary tract infection and other factors. 1. Prolonged labor: the gestational sac in the process of gradual descent, and the surrounding wall of the uterus stripped, resulting in the rupture of capillaries on the amniotic membrane, there will be a small amount of bleeding, manifested in the urine with the paper wiped with a light color of blood. 2. urinary tract infection: if there is acute urethritis and other diseases, due to pathogenic bacteria infection caused by local inflammation, inflammation will also lead to urethral redness, bleeding, there will be blood in the urine, appearing to urinate with paper wiped with light blood color. In late pregnancy when urine wiping with light blood, it is recommended to consult a doctor in a timely manner, follow the doctor’s instructions for further examination, under the doctor’s comprehensive analysis, choose a reasonable treatment plan.