Reason 1: Urinary stones The elderly hematuria, first of all, should think of urinary stones. Because the elderly are less active, stay in bed for a long time, have osteoporosis, and the calcium in the bones is free, it is easy to lead to stones.

Reason 2: Painless hematuria can occur in early renal tuberculosis of urinary system. Urine test showed pus cells and red blood cells. When tuberculosis involves the bladder, frequent urination, urgency and dysuria may occur. Frequent urination is often very obvious, and urination can reach dozens of times a day. May be accompanied by fever, night sweats, emaciation and other systemic symptoms.

Reason 3: Renal hematuria caused by urinary system infection refers to hematuria originating from glomerulus, and its clinical manifestations are simple hematuria or hematuria with proteinuria, which is more common in patients with urinary system infection. If the treatment of kidney disease is incomplete, recurrent or untreated, the condition of kidney disease can not be effectively controlled, and then uremia will occur when the condition deteriorates gradually.