Is the pregnancy test still valid after it expires?

Pregnancy tests that expire are usually invalid.

After expiration, chemicals in pregnancy tests may deteriorate, making them unable to react accurately with urine components, affecting the accuracy of the test results. Second, small changes in urine hormone levels may no longer be detected sensitively, increasing the probability of false negatives, meaning pregnancy is not detected. In addition, the use of expired pregnancy test paper, the results are unreliable, may lead to misleading users, whether it is mistaken for pregnancy or not pregnant, will lead to a series of subsequent problems.

In short, in order to ensure the accuracy and reliability of test results, should use the pregnancy test paper within the validity period, and strictly follow the instructions for testing. If there are doubts about the test results, it is recommended to consult a professional doctor or further examination.