Most women are familiar with a pregnancy test stick. As long as they find that their menstrual cycle is delayed and want to know if they are pregnant, they can use a pregnancy test stick to test it, which is very convenient and simple. But they may also encounter some confusion because not every time they use a pregnancy test stick, the results are very clear. For example, what about the half line of the pregnancy test stick? Below is some introduction about this issue.
What's wrong with the half line of the pregnancy test stick
The half line of the pregnancy test strip is related to the testing method or there is a problem with the test strip itself. The pregnancy test with a pregnancy test stick is usually conducted 7 days after the menstrual cycle is delayed or 10 to 14 days after sexual intercourse. The test paper shows two red lines indicating a positive result, indicating pregnancy. In addition, after 7 days of sexual activity, a blood HCG test can be performed at the hospital. The accuracy of the test strip is not high, and it is generally recommended to undergo a blood HCG test, which has a high diagnostic rate. It is recommended to undergo a blood HCG test when menstruation is delayed for more than a week for a better diagnosis.
What is the reason for false positive or false negative results in pregnancy tests
The pregnancy test stick usually only shows three situations: pregnancy, non pregnancy, and invalidity. However, the pregnancy test stick is not 100% accurate and may also make mistakes, leading to false positives and false negatives.
False positive: The pregnancy test results show pregnancy, but in reality it is not. There are many possibilities that could cause this situation. Failure to use as required or expired test strips can lead to errors in pregnancy testing. Diseases such as pituitary disease, hyperthyroidism, ovarian cysts, endometrial hyperplasia, and uterine cancer may also lead to an increase in HCG concentration in the body, resulting in false positives.
False negative: pregnant but not detected. This situation is relatively rare, and the reason for its occurrence may be the premature use of a pregnancy test stick for detection, as the concentration of hCG in the body is not high enough to detect it.
What's wrong with the half line of the pregnancy test stick? The reason for this situation is improper operation or problems with the test paper. Everyone should control the timing of using a pregnancy test stick, as morning urine tests can improve accuracy. Before use, it is important to carefully read the instructions and master the correct usage methods. Additionally, before using the pregnancy test stick, it is important to check the expiration date. Exceeding the expiration date or improper storage can affect the test results.
