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False positive pregnancy, false positive pregnancy test, cause
If a woman has positive tests and a pregnancy test, but the presence of an embryo in the uterus has not been confirmed, then they speak of a false positive pregnancy. In this case, it is important to find out the reasons for the increase in the hCG hormone, the level of which is determined to detect pregnancy.
How does a pregnancy test work?
The accuracy of pharmacy tests is approximately 97%. They allow you to identify pregnancy from the first days of missed periods. But it so happens that the result turns out to be incorrect – a false positive pregnancy test indicates that life is developing in a woman’s body, but in fact it is not.
False positive pregnancy is possible due to incorrect use of the test or if tumors occur in the body
To understand why the results turn out to be incorrect, you need to know how the pregnancy test works.
All types of tests work on the same principle: they detect the hCG hormone produced by the chorion (future placenta).
This hormone appears a day after the embryo is attached to the wall of the uterus.
After a few days, the concentration of the hormone increases, and 2 strips or a corresponding inscription are displayed on the test.
Causes of a false positive pregnancy test
The test may show an incorrect result for the following reasons:
- It turned out to be overdue or defective. Be sure to look at the expiration date when purchasing the dough. It is more difficult to recognize a marriage, but you can repeat the pregnancy test several times.
- The test was applied too early – before menstruation was delayed.
- Instructions for its use were not followed. For example, a woman evaluated the result later than the specified 5-7 minutes after the strip was dipped into urine.
- The woman took hormonal medications that increase the amount of hCG.
- A hormonal failure has occurred in the body.
- The woman has had an abortion, miscarriage or ectopic pregnancy.
- The presence of tumors and cysts. If a woman did not plan a pregnancy, but the hCG level is elevated, it is important to undergo a comprehensive examination to exclude oncology.
False positive results are less common than false negative results. This is due to the fact that women conduct home tests too early to determine their interesting position, without waiting for a delay.
A false positive pregnancy is associated with incorrect use of the test or the occurrence of tumor processes. Therefore, to confirm pregnancy, you should consult a doctor, do an ultrasound scan and get tested.