Pregnancy test evaporation line

Are you having a hard time telling if your test result is a faint positive or evaporation line? Kenosha Gleaton.

It can sometimes be hard to tell whether that subtle, extra line on a pregnancy test is a positive result. An evaporation line or evap line typically appears as a faded streak, while a faint positive pregnancy test result looks like a lighter blue or pink line, depending on the test dye color. Because interpreting your at-home pregnancy test can occasionally be tricky, this article covers evaporation lines and faint positives, tips to get accurate results, and what to do if you don't. At-home pregnancy tests check your urine for human chorionic gonadotropin HCG , a hormone released by your body when a fertilized egg implants in the lining of your uterus. If one line the control line, which confirms the test is working appears on a non-digital test, it most often means you are not pregnant. If your test shows both the control line and a line in the test result window, this typically indicates pregnancy. Pregnancy tests are most accurate when taken after you have missed a period.

Pregnancy test evaporation line

We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission. Healthline only shows you brands and products that we stand behind. The second line may be an evaporation line. This line can appear in the results window of a pregnancy test as the urine dries. You can pick up a home pregnancy test at your local drugstore or online. These tests are 97 to 99 percent accurate. But sometimes, the results are confusing. Some pregnancy tests involve two lines: a control line and a test line. The control line appears on every test, but the test line only appears if there are levels of the pregnancy hormone in your urine. The second line could be an evaporation line. When you schedule an appointment with your doctor to confirm a pregnancy, your doctor may take a urine or blood sample. A lab checks these samples for a hormone the body produces during a pregnancy, called human chorionic gonadotropin hCG.

This line occurs when the urine on the test strip begins to dry, leaving behind a residue, pregnancy test evaporation line. My podcast changed me Can 'biological race' explain disparities in health? So, you're trying to read a pregnancy test result and there's a faint line, how can you distinguish between the two?

In some cases, what looks like a positive pregnancy test result may actually be an evaporation line, also called an evap line. Here's how to tell the difference. If you're hoping for a positive pregnancy test, you may find yourself squinting at the test stick, willing two solid lines to appear. And if you wait long enough, both lines may indeed show up— but that doesn't necessarily mean you're pregnant. In some cases, what looks like a positive result may actually be an evaporation line or evap line. So what is an evaporation line?

The last thing you need are unclear results. So what is an evaporation line on a pregnancy test? Dye-based home pregnancy tests work by detecting the pregnancy hormone human chorionic gonadotropin hCG in your urine, says Kelli Burroughs , MD, a gynecologist in Houston. The first line is a control line, which displays regardless of whether you have a positive or negative result. The second line is a test line, and only pops up if you have detectable levels of hCG in your urine. This second line should be the same color as the control line, although it can range from very light to very dark depending on how much hCG there is in your body. An evaporation line is a faint line that appears in the results window of an at-home pregnancy test. It can look very similar to a positive pregnancy test , since it forms in the same place as the test line aka the second line that indicates a positive result. In short, an evaporation line is typically caused by user error. There are a few ways to determine whether that second line on your pregnancy test is an actual positive result or an evaporation line.

Pregnancy test evaporation line

It can sometimes be hard to tell whether that subtle, extra line on a pregnancy test is a positive result. An evaporation line or evap line typically appears as a faded streak, while a faint positive pregnancy test result looks like a lighter blue or pink line, depending on the test dye color. Because interpreting your at-home pregnancy test can occasionally be tricky, this article covers evaporation lines and faint positives, tips to get accurate results, and what to do if you don't.

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Self-testing at home or anywhere. Medically Reviewed by Dr. At-home pregnancy tests come with very specific instructions about how and when to take them, and how and when to read the results, to avoid inaccuracy. Most home pregnancy tests need to be interpreted within two to five minutes of urination, adds Dr. By Cristina Mutchler Cristina Mutchler is an award-winning journalist with more than a decade of experience in national media, specializing in health and wellness content. Take the pregnancy test using your first urine of the morning. If the line on your test tomorrow becomes darker and more clear, then you can be confident it's a positive pregnancy test and not an evaporation line. Thanks for your feedback! Is it possible for birth control to make your breasts bigger? What does an evaporation line look like? Ovulation Symptoms: 9 Signs of Ovulation. Reach Out, We're Here Have questions about your order or products?

Is it a faint positive — or an evaporation line? Here's what each signifies on a pregnancy test, and how to tell the difference. Whether you've been enduring the two-week wait or you're taken by surprise by a missed period , you know it's time to take a pregnancy test.

If you have tested at the right time and received a negative result, you are most likely not pregnant. Anytime you see a faint line and are unsure if it means you are pregnant or not, the best thing to do is to repeat the pregnancy test with a new test strip. Whether you've been enduring the two-week wait or you're taken by surprise by a missed period , you know it's time to take a pregnancy test. Share on:. While they often can, the effectiveness of the test depends on the level of hCG in the urine. There's two possibilities: it could mean a positive test result or it could be an evaporation line. Pregnancy Tests. While an evaporation line is a result of the test strip drying out and is not a reliable indication of pregnancy, a faint positive suggests the presence of hCG, the hormone produced during pregnancy. This can happen when taking a pregnancy test later in the day after consuming a lot of liquids. On the other hand, a faint positive test result will be the same color as the control line—just not as bold or dark.