Question: What is a pregnancy test evaporation line?
Answer:
An evaporation line on a pregnancy test is basically a false positive. While false positives and false negatives are fairly rare, the evaporation line is the closest most women will come to having an error on their pregnancy tests.
The evaporation line is basically caused by reading a pregnancy test after the time limit advised by the manufacturer has passed. This time limit is usually clearly stated in the home pregnancy test kit instructions. The majority of the pregnancy test kits advise you to read the results within a maximum of 10-30 minutes after the urine test results. The evaporation line is only found on urine pregnancy tests. Using a digital pregnancy test will remove the risk of misreading a pregnancy test because of the way the test results announce if you are pregnant or not.
More Questions on Pregnancy Tests
- What kind of medicines effect the pregnancy test?
- If I take a test too early can it be wrong?
- What if a positive line came up later?
- How long should I wait between tests?
- Will an IUD alter a pregnancy test?
- What is a false positive?
- Do I have to use first morning urine?
- Pregnancy Tests More questions about pregnancy tests.
- 25 Signs of Pregnancy

