Whether long-term urinary occult blood 1+ is important mainly depends on the cause of urinary occult blood. There are many causes of long-term urinary occult blood, and common causes include various glomerular diseases, systemic diseases such as blood diseases, overdose of anticoagulant drugs, and urinary tract diseases such as stones, urinary tract infections, tumors, and so on. Different diseases have different hazards to the human body. 1. Glomerular diseases: if glomerulonephritis caused by long-term urinary occult blood, if the condition is mild, the treatment effect is good, it may not matter; if the condition is more serious, the treatment effect is not good, some patients with the progression of the disease may be renal insufficiency, the late stage of the development of uremia, at this time, the harm is greater. 2. Systemic diseases: if the blood disease caused by urinary occult blood, actively treat the primary disease, can improve the symptoms. If the anticoagulant drug overdose, under the guidance of the doctor to reduce or stop the drug, the symptoms are relieved, at this time usually have relatively little effect on the human body. 3. Urinary diseases: (1) urinary stones caused by long-term urinary occult blood, can be extracorporeal shock wave lithotripsy or ureteroscopy lithotripsy and other surgical treatments can cure the disease, this type of urinary occult blood is not harmful to the human body. (2) If the urinary tract infection caused by urinary occult blood, you can apply antibiotic anti-infection treatment, most can be cured, the harm is relatively small. (3) Urinary occult blood caused by urinary tract tumor requires surgical treatment, some need radiotherapy, which is more harmful to human body. Long-term urinary occult blood may also have other reasons, it is recommended that patients go to regular hospitals in a timely manner to improve the examination to clarify the cause of the disease, under the guidance of the doctor to the targeted treatment or treatment.