Is it normal for urine occult blood to be positive in one test and negative in another?
Nov 29, 2024
Source: Cainiu Health
Dr. Cao Zhiqiang
Introduction
Under normal circumstances, whether one urine occult blood test is positive and the other is negative is considered normal and needs to be determined based on specific situations. If there are no accompanying adverse symptoms, it is usually considered normal. However, if symptoms such as frequent urination, urgency, or painful urination occur, it may indicate abnormalities in the urinary system. In daily life, it is recommended to maintain a light diet, reduce consumption of seafood, and avoid drinking beer, white spirits, and other alcoholic beverages.
Generally, whether having one positive and one negative result for occult blood in urine is normal depends on the specific circumstances. If there are no accompanying adverse symptoms, it is usually considered normal; however, if symptoms such as frequent urination, urgency, or painful urination occur, it may indicate an abnormality in the urinary system. If discomfort occurs, timely medical attention is recommended. Detailed analysis is as follows:
A fluctuating result of one positive and one negative for occult blood in urine typically refers to a situation in which one urine test shows a positive result and another, conducted at a different time, shows a negative result. The results of occult blood tests can be influenced by various factors including diet, physical activity, and medication intake. If there are no other adverse symptoms, or if large amounts of red-colored vegetables or meats were consumed or strenuous exercise occurred between the two tests, such fluctuations are usually normal. Adjustments can be made in daily life and retesting may be conducted under a doctor's guidance.
If symptoms such as frequent urination, urgency, or dysuria are present in daily life, it may suggest an abnormality in the urinary system. Common conditions may include urinary tract infections, urinary system stones, or urinary system tumors. These conditions may cause local tissue damage and bleeding, leading to a weakly positive result for occult blood in urine. In such cases, it is important to visit a reputable hospital for further examination to determine the exact cause and receive appropriate treatment under the guidance of a qualified physician.
In daily life, it is important to maintain a light diet, reduce consumption of seafood, and avoid drinking beer and liquor. Maintaining good lifestyle habits and emotional well-being, while avoiding excessive fatigue and stress, is also essential.
