Pregnancy test evaporation line

It can sometimes be hard to tell whether that subtle, extra line on a pregnancy test is a positive result.

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.

Pregnancy test evaporation line

Are you having a hard time telling if your test result is a faint positive or evaporation line? Kenosha Gleaton. Peeing on a stick affectionately known as POAS can bring a lot of emotions and sometimes confusion. Home pregnancy tests might be convenient, but they may also leave you with questions: Is it a false positive or negative? Why do I see faint lines? What could a faint line on a pregnancy test mean? If you get a faint line, how do you know if that's a positive result or an evaporation line? This guide will walk through how to tell the difference between a faint positive pregnancy test result vs an evaporation line, and how to avoid getting evaporation lines. If taking an at-home urine pregnancy test, you may end up seeing a faint line. But what exactly can a faint line mean?

In other words, people might see evaporation lines if they read a pregnancy test too late.

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? It's a marking that may materialize on a home pregnancy test after the sample has dried up and evaporated, says Robert Setton, M.

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.

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. 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.

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An evaporation line is a faint, colorless line that appears in the results window of an at-home pregnancy test. How to identify evaporation line How to avoid evaporation line Next steps. When these symbols appear, you can feel confident that, as long as you have tested at the right time and followed the directions, you are likely pregnant. If your test shows both the control line and a line in the test result window, this typically indicates pregnancy. Pregnancy Planning. View Your List. Checking results after that window means your urine has dried, potentially causing that streaky evap line. This line occurs when the urine on the test strip begins to dry, leaving behind a residue. Table of Contents. While a true positive pregnancy test will contain some color, an evap line will be colorless. Evaporation lines are common and can occur with any pregnancy test. These lines usually show up when you've read the results outside the suggested window and the urine has dried. Some believe that aspects of pregnancy show that the baby will be a boy.

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On the other hand, "a positive pregnancy test will appear as a colored line that should look just like the control line," says Dr. Certain medical complications can also lead to a false-negative result. But will a…. Medically Reviewed by Dr. What to know about pica in pregnancy. Planned Parenthood. Xulane is prescribed to help prevent pregnancy. The compounds in home pregnancy tests interact with hCG, and a positive result will often look like a line, a dot, or a plus sign. When you schedule an appointment with your doctor to confirm a pregnancy, your doctor may take a urine or blood sample. Recommended for you Navigate your fertility with peace of mind. Home pregnancy tests dye-based and digital check your urine for human chorionic gonadotropin hCG. These choices will be signaled to our partners and will not affect browsing data.