Evaporation line on pregnancy test

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.

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.

Evaporation line on pregnancy test

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. But wait, is that a faint line you see? Reading a home pregnancy test can be confusing, and if you're really wanting to get pregnant or hoping to not be pregnant , it's nerve-wracking when you can't tell an evaporation line from a faint positive. An evaporation line or "evap line" is a faint line on a pregnancy test that shows up after urine dries on a testing strip. Because it can be hard to tell the difference between a faint positive and an evap line on a pregnancy test, it's important to carefully follow the testing kit instructions. If you're very early in your pregnancy, the line on certain tests may look less clear than if you're further along. There's even a BabyCenter Community group Opens a new window dedicated to analyzing pregnancy test photos to distinguish faint positives from evap lines. While a true positive pregnancy test will contain some color, an evap line will be colorless. Generally speaking, you'll need to read pregnancy test results within 5 to 10 minutes of peeing on that stick to reduce the chances of seeing an evap line in your results. That isn't a lot of time, which makes it easy to go over the limit — especially if you get distracted by your phone, your partner, or another child while you're waiting. So set a timer for the suggested wait time right after you take the test, and check the results as soon as your alarm sounds. If you're not sure how long it's been since you took the test and your results look inconclusive, you can always repeat with a new test to double-check.

Dec 6, Written By Valencia Higuera. You generally have the choice between three types of home pregnancy tests: mid-stream, dropper, and dip tests.

An evaporation line is a small streak where the positive line should be on a pregnancy test. It only appears on tests that show negative results, meaning it does not indicate pregnancy. Taking a pregnancy test can be a nerve-racking experience, especially when it is difficult to understand what the lines on the test mean. An evaporation line does not indicate pregnancy. If this type of streak appears, it usually means that a person has read the results too late or has otherwise misused the test. A positive test would change color in the same spot, blotting out the evaporation line. For most people, getting an accurate result merely involves taking another test.

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.

Evaporation line on pregnancy test

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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Pregnancy typically begins when a fertilized egg implants in the lining of the uterus. Related articles. However, the typical waiting time for most pregnancy tests is three to five minutes. However, it may also be the result of a chemical pregnancy , a false-positive test result that comes from taking a pregnancy test too soon before the start of your next menstrual period. Share this article. An evaporation line is a line that appears in the results window of a pregnancy test as the urine dries. Office on Women's Health. Understand audiences through statistics or combinations of data from different sources. Note that you can also use a digital pregnancy test that says the words "pregnant" or "not pregnant" instead. Birth control is used to prevent pregnancy. Learn more. There's a reason why it's important to read your pregnancy test within the time frame that's noted on the product's instructions usually somewhere from three to 10 minutes. What types of birth control are there? Share this article Facebook Pinterest Linkedin Twitter. But if you notice the additional line later that day, it's probably an evap line.

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.

Find out what the recommended dosage is, how to apply the drug, and more. This can result in a faint evaporation line or a false-positive result. Waiting for the results of a pregnancy test can be agonizing. This is when an egg implants in the uterus and a miscarriage occurs shortly after. How to avoid getting an evaporation line on a pregnancy test. You can pick up a home pregnancy test at your local drugstore or online. Others have instructions to check results after five minutes. The best thing to do if you see a faint line on a pregnancy test is to wait and test again. They do this by comparing your hCG levels to an average threshold of hCG found in early pregnancy. Medically reviewed by Debra Sullivan, Ph. On a pregnancy test, an evaporation line might appear after the urine sample has dried up and evaporated. These might be blue or pink, depending on the specific test. Here are the mental and physical effects of teenage pregnancy. Was this article helpful?