What is the cause of occult blood in pregnant women's urine?

Urine occult blood is also called urine hidden blood in clinical practice. In layman's terms, it means potential blood in urine. This situation can be found through routine urine examination. The so-called 1+ means that there are ten red blood cells in the urine. Patients need to avoid eating very irritating, greasy and fried foods, and they should not drink alcohol or smoke. They should eat more foods that reduce internal heat. So what is the matter with 1+ in pregnant women's urine occult blood?

First, what happens if the urine occult blood is 1+ in pregnant women? If the urine occult blood is 1+ after pregnancy, it may be caused by contamination, such as bleeding from threatened abortion that contaminates the urine, or it may be a urinary tract infection or kidney disease. However, a urine occult blood test of 1+ alone cannot confirm that there is a problem, and a urine routine test needs to be repeated. During the follow-up examination, you can first wipe the vulva clean and urinate a small amount of urine, and then use a urine cup to collect the midstream urine. This type of urine test is relatively less disturbing and more accurate.

Second, urine occult blood is an indicator found during routine examination of human urine. One of the tests in the urine routine is to check the number of red blood cells in the urine. If the number of red blood cells increases (normally negative), a small number can be called urine occult blood. Urine occult blood, as an indicator, can be divided into negative and positive. If it is positive, it is several plus. Generally, occult blood in urine is caused by kidney problems or urinary tract infection.

Third, a positive urine occult blood test means that there are red blood cells in the urine, but it is not visible hematuria, but red blood cells are found through testing. Hematuria is divided into gross hematuria, total hematuria, and positive urine occult blood; in clinical practice, the three-cup test is also used to analyze where the hematuria comes from. The three-cup test is that the patient divides his urine into three parts and places them in three test tubes. If hematuria is found in the first tube, it means that the bleeding site is in the urethra; if hematuria is found only in the last cup, it means that the bleeding site is from the bladder; if hematuria is found in all three cups, it means that the hematuria is from the kidneys. Blood clots in the urine often indicate bleeding in the bladder or urethra.

What happens if pregnant women have occult blood in their urine? Occult blood in urine cannot be observed with the naked eye or under a microscope as red blood cells are present, but there is a reaction when tested with a test strip. Why is this so? Because when red blood cells are destroyed, the hemoglobin contained in them will be released, so the urine test stick can detect the reaction of hemoglobin. But why do red blood cells burst before leaving the body? This is because the lifespan of the red blood cells has come to an end, and they dissolve on their own like foam. It may also be because after drinking a lot of water, the urine becomes thinner and the tension decreases, causing the red blood cells to burst. In any case, when there is occult blood in the urine, it is a warning sign, just like hematuria, and should not be taken lightly.