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How to Check for Diastasis Recti

Checking yourself for Diastasis Recti can be a frustrating experience. Perhaps one day you check yourself and you have a gap that’s 2 fingers wide, but the next day the gap seems smaller (hooray!). Then you check again the following week and now the gap is closer to 3 finger widths. What’s going on?  Is your gap really changing this much? Likely not.

Unfortunately, the Diastasis Recti test is an imperfect one with many variables that can influence your results. Moreover, the width of your gap is NOT the most telling indicator of your DR severity. 

Wait what? Yes…that’s right.

In this post, we’ll walk you through step-by-step how to perform the DR assessment, what exactly to look for, and how to perform the test in a manner that improves your testing accuracy. Finally, we’ll share some guidance on how to take action on your results so you can confidently begin your healing process.

Diastasis Recti: What to Check For

Before we discuss how to perform the test, let’s briefly discuss what you are checking for.

Recall that Diastasis Recti is a separation of the left and right sides of the rectus abdominis muscle. Therefore, the first thing to check for is how far apart those left and right sides of your rectus abdominis muscle are. While there is no standard definition of DR, the most well-accepted definition is a gap width of 2.7 cm (approximately 2 finger-widths) or greater. In other words, try to feel for the distance between the left and right “ridges” of your rectus abdominis muscle. If you can fit two or more fingers in between those ridges, then this would be considered DR.

Most people think this is the only thing to assess. After all, we almost always hear DR discussed in terms of finger-widths. However, newer research has revealed that depth of separation can actually be a more telling indicator of DR severity (Lee & Hodges, 2016). Unlike the width assessment, there is no objective criteria for assessing depth. In general though, when you press down on the gap, how “taut” (or not) does it feel?  If your gap feels shallow and taut — similar to the tissue under your chin when you lift your head (like below) –– this is a good sign. It indicates good integrity of your linea alba connective tissue (the tissue that connects the two sides of your rectus muscle).

However, if your gap feels “soft and squishy” enabling you to sink your fingers down into your abdomen more — more like the tissue in your cheek (like below) — this is a sign of a more compromised linea alba tissue, and therefore your healing process may take longer.

When factoring in your width and depth assessments, the depth measurement weighs more heavily on the speed of your healing process than the width measurement. As an example, a gap that is 3 fingers wide and shallow will likely take LESS time to heal than a gap that is 2 fingers wide and deep.

How to Check Yourself for Diastasis Recti

OK now that you understand the basics of gap “width” and “depth,” let’s discuss how to perform the test. Watch the video for an overview, and see the bullet points below, which summarize the key steps. If you are a fitness professional looking for guidance on how to assess your clients, please see Checking a Client for DR.

So, to summarize the key points from the video:

  1. Transition onto your back safely: Roll to your side first to avoid “crunching.” Place your feet flat on the ground, with one hand behind your head, and the other just below your sternum (or bra line) with your fingers facing your head.
  2. Assess at rest first: Begin your assessment by walking your fingers down your midline until about 2 inches below your navel – getting a sense for what the linea alba tissue feels like. Does it feel relatively “springy” when you press against it, or does it feel soft and deep with no resistance when you press down? The purpose in doing this at-rest assessment first is so that you can compare how the tissue feels at rest with how it feels during the next step: the head lift.
  3. Assess with exhale + 1” head lift: After you’ve performed the at-rest check, take a big inhale and, on the exhale, lift your head only about an inch off the ground. Begin to walk your fingers slowly down your midline – just as you did with the at-rest check – while you continue to exhale. If you run out of breath, just come down and rest, then take another breath and repeat. As you walk your fingers down, assess for width and depth (see more on this below).
  4. Compare your at-rest assessment with your head lift assessment: When you assessed your tissue tension (depth) with the head lift, did it feel different from your at-rest check? Did you notice that when you performed the head lift, you felt more tension or tightness in your gap? If so, this is a good sign. That means you can generate tension in your linea alba. If you barely felt any difference at all, this is a sign of more compromised tissue.
  5. Roll to side to get up: Safely return to a seated position by rolling to your side first (to avoid crunching).

When to Check for Diastasis Recti

We recommend waiting until you are at least 6 weeks postpartum to perform the DR assessment. Every person will have some degree of DR in the immediate aftermath of delivery, which will heal a bit over the next several weeks. So, waiting at least 6 weeks will give you a more accurate picture of the degree of recovery work needed.

While you can check for DR during pregnancy as well, remember that some degree of DR is a normal and natural part of pregnancy. So, just recognize that if you are checking later in your pregnancy, you will likely have it, but that’s not necessarily a bad thing. Your body is doing what it is designed to do. Though make sure to follow the tips in Diastasis Recti: What You Need to Know to ensure you don’t engage in activities or behaviors that could exacerbate your DR.

Tips for Improving Your Testing Accuracy

As mentioned, the DR test is an imperfect one, with several variables that can impact results. To improve your testing accuracy, follow the step-by-step process outlined above, and these additional tips:

  • Avoid testing if you are bloated: Bloating pushes the abdominal contents forward, which can widen the gap. Avoid testing within an hour of eating as well.
  • Exhale when lifting your head (not after): Because we are trying to measure the best tension that the linea alba can generate, the way you breathe during the assessment impacts the results. For the most accurate results, exhale a split second before you lift your head (completing your exhale with the lift). Avoid exhaling after your head is lifted.
  • Lift no more than one inch: This is important. Many people will lift their heads up high like doing a crunch to better see what they are doing. As mentioned in the video, lifting your head too high will cause your gap to close a bit, which can make you think the gap is smaller than it really is. Lift only to the point where you feel your abdominal muscles activate. This is typically about an inch off the ground.
  • Apply consistent pressure: Note the pressure you apply when you test. Try to apply this same pressure each time you check because how hard you press down also impacts your results.

How to take action on your results

If you believe you have a mild to moderate case of DR, or simply want to work on building your core strength in the most effective way, check out our Postpartum & Core Recovery Program. Want more personalized support? Consider working with a PROnatal Personal Trainer. Our trainers specialize in Diastasis Recti mitigation and recovery. Or, if you are a fitness professional looking to work with pre & postnatal clients, explore our education to become a Pre/Postnatal Performance Training Specialist. 

One important note. When working through your recovery, remember that many people have a natural gap (DR is anything over 2 finger-widths) and likely you don’t know what your pre-pregnancy gap size was because no one thinks to check then! So, it may not be realistic for you to completely close your gap because perhaps it was never closed in the first place.

In the end, what matters most is that you are able to maintain good core control during movements, you don’t show any symptoms of “coning” in your belly, and you aren’t experiencing pain. Use these metrics to gauge your success vs. a potentially unrealistic goal of complete gap closure.

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Lee, D., & Hodges, P. W. (2016). Behavior of the Linea Alba During a Curl-up Task in Diastasis Rectus Abdominis: An Observational Study. The Journal of orthopaedic and sports physical therapy46(7), 580–589.

Spitznagle, T. M., Leong, F. C., & Van Dillen, L. R. (2007). Prevalence of diastasis recti abdominis in a urogynecological patient population. International urogynecology journal, 18(3), 321-328.