Urobilinogen weak positive what's going on

Urinary routine urobilinogen negative or weak positive, more consider is normal. But for urobilinogen abnormal, more consider is bile duct bile excretion abnormal, suggest the patient into further blood test liver function, see whether total bilirubin has height. If total bilirubin significantly increased, and is mainly direct bilirubin increase, more consider is biliary obstruction. At this time, it is suggested that the patient perfect further abdominal color Doppler ultrasound or abdominal magnetic resonance examination, comprehensively judge the cause of biliary obstruction, whether caused by stones, or by biliary tumor disease, or due to pancreatic tail tumor further compression biliary tract caused, need further examination to be clear.