The presence of occult blood in urine routine 42 days after delivery may be related to non-pathological reasons such as too little water, postpartum malignant dew, and pathological reasons such as urinary tract infection and urinary tract stones. It is recommended to improve other tests to clarify the diagnosis and follow the medical advice for the next treatment. I. Non-pathological reasons: Urine may have occult blood in urine routine when urine is retained in the bladder for a long time due to low water intake in the 42 days after delivery, or when urine samples are contaminated due to unclean postpartum dew or women’s menstrual period. Such cases are generally not accompanied by symptoms of discomfort, no need to continue to intervene in the treatment, to ensure a light diet, appropriate exercise, regular review can be. Pathological causes: 1, urinary tract infection: 42 days after delivery, bacteria and other pathogenic bacteria infection induced cystitis, pyelonephritis and other urinary tract infections, can cause urinary routine with occult blood, and will be accompanied by leukocytosis performance, and may also have urinary frequency, urinary urgency, urinary pain and other symptoms. It is recommended to take levofloxacin hydrochloride capsule, cefaclor extended-release tablets and other antibiotics for treatment to improve the symptoms. 2. urinary tract stones: 42 days after delivery, kidney stones, ureteral stones, bladder stones and other urinary tract stone diseases may cause urinary routine with occult blood and accompanied by symptoms such as back pain, lumbago and weakness. After a clear diagnosis such as urological ultrasound, patients with small stones can take medication to promote the discharge of stones with urine. For patients with larger stones, extracorporeal shock wave lithotripsy or surgery can be considered for stone extraction treatment.