Urinalysis occult blood weak positive suggests urinary occult blood, divided into physiological and pathological two cases. Physiological include strenuous exercise, menstrual blood contamination of urine, etc., usually does not have an effect on the kidneys; pathological include stones, nephritis, etc., may appear urinary tract obstruction, renal insufficiency, etc..
1. Physiological: strenuous exercise, menstrual blood contamination of urine, etc., there may be occult blood in the urine, usually does not have an effect on the kidneys, rest, menstruation will usually return to normal.
2. Pathologic: including stones, nephritis and so on. The damage of stones to kidney function depends on the size of the stones. Smaller stones seldom cause renal function damage; larger stones with urinary tract obstruction may affect renal function. Nephritis is mainly manifested by proteinuria, hematuria, edema, hypertension, etc. Blood creatinine and urea nitrogen will be elevated in severe cases.
Urinary occult blood patients should go to the hospital in time, under the guidance of professional physicians to clarify the cause and timely treatment.