Postpartum Diastasis Recti: Safe Exercises

Postpartum diastasis recti (abdominal separation) is the widening that remains when the connective tissue between the two vertical "six-pack" muscles (the rectus abdominis) thins and stretches during pregnancy and the gap fails to fully close afterward; the safest way to rebuild your core is not classic sit-ups or planks but breath-controlled deep abdominal (transversus abdominis) and pelvic floor exercises ^[1][5]. Done slowly, under control, and without pushing the abdominal wall outward, these movements can reduce the inter-rectus distance (the gap along the linea alba) and related symptoms for most people.

This article explains, in plain language, what abdominal separation is, how to check for it at home, which movements to avoid in the early weeks after birth, and the safe step-by-step exercises you can begin with. The information below is for general education only; for a personalized program, it is best to consult a physiotherapist.

What is diastasis recti (abdominal separation)?

Diastasis recti occurs when the left and right halves of the rectus abdominis muscle, popularly known as the "six-pack," separate as the central band of connective tissue called the linea alba thins and stretches ^[1]. As the uterus grows during pregnancy, it stretches this midline tissue much like a rubber band. After delivery, the linea alba usually retracts and comes back together; but when it has been stretched too far it can lose some of its elasticity, so the gap does not close as much as it should. This persistent gap is diastasis recti, and it can range from mild to noticeable ^[1].

Some degree of separation is a normal, expected, and natural adaptation of nearly every pregnancy. By the final weeks of pregnancy, close to all women show some degree of abdominal separation ^[6]. After birth, while some signs ease over the following weeks, the separation can persist for a while in many women; according to research cited by Cleveland Clinic, about 45% of women still have diastasis at six months postpartum ^[1]. The Hospital for Special Surgery similarly notes that persistent separation continues in up to 60% of women after delivery ^[3].

Diastasis recti is not painful on its own ^[3]. However, it can produce visible and palpable signs. Common indicators include ^[1]:

• ·A visible bulge or "pooch" just above or below the belly button that persists even after losing pregnancy weight
• ·A soft, jelly-like feeling around the belly button
• ·Coning or doming down the midline when you contract the abdominal muscles or lean back in a chair
• ·Difficulty lifting objects, walking, or doing everyday tasks, and a feeling of core weakness
• ·Low back pain and poor posture

What causes abdominal separation, and what are the risk factors?

The primary cause is pregnancy: the front abdominal wall stretches to make room for the growing baby ^[1]. Separation usually develops in the third trimester and is sometimes only noticed several weeks after birth ^[1]. According to Cleveland Clinic, factors that can increase the risk include ^[1]:

• ·Having fewer than 12 months between pregnancies
• ·Being over 35 years old
• ·Carrying multiples (twins or triplets)
• ·Having a large or heavy baby
• ·Being very petite/small-framed
• ·Increased intra-abdominal pressure while pushing during a vaginal delivery

When left unaddressed, or in more noticeable separations, secondary problems such as increased back pain, urine leakage, umbilical hernia, constipation, and pelvic pain may be more common ^[1]. That is why it is better to address separation with a safe exercise approach than to ignore it.

How do you check for abdominal separation at home?

There is a simple finger test you can do at home to get a sense of diastasis recti. This test does not provide a diagnosis; it only guides whether you should consult a professional ^[1][3]. The steps described by Cleveland Clinic and HSS are:

1. ·Lie on your back with your knees bent and your feet flat on the floor ^[1].
2. ·Place one hand behind your head for support and lift your shoulders slightly off the ground, as if doing a small crunch, and look toward your belly ^[1].
3. ·Place your other hand at the level of your belly button, palm down and fingers pointing toward your toes ^[1].
4. ·Use your fingers to feel the gap between the two abdominal muscles and notice how many fingers fit between the right and left sides. Repeat the same check above, at, and below the belly button ^[1].

If you feel a gap wider than two finger-widths, it is best to discuss it with a healthcare professional ^[1]. According to Cleveland Clinic, a gap wider than about 2 centimeters or two finger-widths is generally considered diastasis recti ^[1].

However, the width of the gap alone is not the whole picture. The tension (tone) and depth of the tissue you feel when you press down matter just as much as the width ^[3]. HSS clinicians interpret feeling the muscles press back against your fingers as a positive sign; it indicates the muscles have retained some strength. In other words, someone with a two-finger gap but good tissue tension may have better core function than someone with a narrower gap but no tension at all ^[3]. So the "severity" of the separation is judged by considering the width and length of the gap together with the strength of the surrounding muscles.

For a more precise measurement, healthcare professionals may use hands-on examination (palpation), a tape measure, calipers, or ultrasound; of these, ultrasound is the most reliable method ^[1][4]. Diastasis recti is defined when the gap between the muscles (the inter-rectus distance) exceeds normal values at one or more points ^[4].

Which exercises should you avoid? (Why classic sit-ups and planks are not suitable early on)

In managing diastasis recti, knowing what not to do is as important as knowing what to do ^[3]. Any movement that pushes the front abdominal wall outward and causes coning or doming down the midline can strain the separation ^[1].

Movements that are especially recommended to avoid in the first weeks after birth include ^[1]:

• ·Classic sit-ups and crunches of any kind: these push the abdominal wall forward and place pressure on the midline gap ^[1].
• ·Planks and push-ups (without appropriate modifications): the early load on the core can cause doming before the muscles are ready ^[1].
• ·Yoga poses that raise intra-abdominal pressure, such as downward dog and boat pose ^[1].
• ·Certain Pilates moves, such as double leg lifts and scissors ^[1].
• ·Any exercise that causes the abdominal muscles to bulge, cone, or dome ^[1].

It is not only exercises that matter; everyday movements count too. Try not to lift anything heavier than your baby; when getting up from bed or a chair, roll to your side first (a "log roll") and use your arms to push up rather than rising straight forward ^[1][3]. When lifting, exhale as you perform the movement instead of holding your breath; breath-holding raises intra-abdominal pressure and can strain the separation ^[3].

An important nuance: the effect of movements like sit-ups on diastasis recti is debated, and current research suggests they may not be as harmful as once thought, but that they should be reintroduced at the right time and with the right technique ^[5]. Even so, avoiding movements that cause doming in the early postpartum period is a common and safe approach ^[1][6].

Step-by-step safe exercises: deep abdominals and pelvic floor

The most suitable exercises for diastasis recti are those that engage the deep abdominal muscles and rely on breath control and slow, controlled movement ^[1]. The deepest muscle, the transversus abdominis (TrA), is the main stabilizing muscle that wraps the trunk from the inside; training this muscle together with the pelvic floor is among the approaches most often recommended by women's health physiotherapists ^[6][5].

Do the following exercises pain-free, without holding your breath, and without pushing your abdomen outward. If doming appears down the midline during any movement, it is too soon for that movement; step back one level ^[3].

1. ·Diaphragmatic (belly) breathing. Lie on your back, knees bent, hands on your lower ribs. Inhale deeply through your nose and let your ribs and abdomen expand outward to the sides. As you slowly exhale through your mouth, gently draw your abdomen inward. This breath is the foundation for waking up the deep abdominal muscles and prepares you for the other exercises ^[1].
2. ·Transversus abdominis (abdominal draw-in). In the same position, as you exhale, gently draw your lower abdomen in with the thought of pulling your belly button toward your spine ^[3]. Do not clench hard; a thin, gentle inward draw is enough. Hold the contraction for 5-10 seconds while continuing to breathe normally, then release. HSS clinicians note this can be repeated throughout the day in different positions (sitting, standing, picking the baby up from the floor), and that every repetition is one less time you pull on the separation ^[3].
3. ·Combining with the pelvic floor (Kegel). Add a pelvic floor contraction to the abdominal draw-in by lifting the pelvic floor muscles up and in, as if stopping the flow of urine ^[2]. The NHS notes that regular pelvic floor and deep stomach muscle exercises can help reduce the size of the separation between the muscles ^[2]. Hold the squeeze for a few seconds, then fully relax; relaxing is as important as contracting.
4. ·Pelvic tilt. Lie on your back, knees bent. As you exhale, draw your abdomen in and gently flatten your lower back toward the floor (tilting your tailbone slightly upward). Hold for a few seconds and return to the start. This combines deep abdominal activation with a controlled trunk movement.
5. ·Heel slide. Lying on your back, keep your abdomen gently drawn in and slide one heel along the floor to extend the leg, then draw it back. Your lower back should not lift off the floor and there should be no doming in your abdomen. Repeat with the other leg. This is the first step in carrying deep abdominal stability into leg movement.
6. ·Toe taps (controlled leg lowering). Lie on your back with knees bent at 90 degrees and shins parallel to the floor ("tabletop position"). Keeping your abdomen drawn in, lightly tap the floor with the toes of one foot, then lift it back. Your lower back should stay flat and your abdomen should not dome. When you are ready, repeat with the other leg.

Doing these movements most days of the week, with few repetitions and good technique, is more valuable than straining with many repetitions. According to the NHS, abdominal exercises can be started after birth as soon as you feel comfortable; however, especially in the early days, it is recommended to avoid sit-ups, planks, and crunches and to avoid movements that cause doming of the abdomen ^[2].

When can you progress to harder exercises?

The first goal is simply to be able to contract the abdominal muscles again and to hold that contraction without causing doming ^[3]. Once you can do this comfortably, you can gradually progress to more challenging exercises such as bicycles and planks; but the basic rule does not change: if your abdomen pushes outward or domes during a movement, the muscles are not yet strong enough for it and you should step back a level ^[3]. Working with a physiotherapist is the safest way to progress at the right time and in the right order ^[1].

Research shows that programs targeting the deep and superficial abdominal muscles, the pelvic floor, breathing maneuvers, and functional movements have produced promising results in reducing the gap and related dysfunction; however, there is not yet full consensus on a single "most effective" exercise prescription ^[5]. This is why it is important to tailor the program to the individual.

When should you see a professional?

Diastasis recti is a common and treatable condition ^[1]. Even so, it is recommended to see a healthcare professional (an obstetrician/gynecologist, physiotherapist, or pelvic floor specialist) in the following situations:

• ·If you feel a gap wider than two finger-widths between your abdominal muscles, or you are experiencing pain ^[1].
• ·If you do not see noticeable improvement within a few months despite working regularly on the exercises. HSS clinicians note that with consistent work, visible results can generally be expected within six months ^[3].
• ·If the separation is accompanied by problems such as pelvic floor dysfunction, urinary incontinence, or pain during intercourse, especially if these persist four months or more after childbirth ^[3].
• ·If you notice a growing bulge, swelling, or discomfort around the belly button (possible signs of an umbilical hernia); in this case a medical evaluation should come first ^[1].

Smaller separations often recover on their own within 4-8 weeks after birth, while a larger separation may take 6-12 months and can require support from a specialist physiotherapist to prevent long-term problems such as back pain and incontinence ^[6]. Surgery is usually not a first step; healthcare professionals recommend physiotherapy and exercise first ^[1].

Short Summary

• ·Diastasis recti is the separation of the two abdominal muscles when the connective tissue (linea alba) that joins them in the midline thins and stretches during pregnancy; it is very common and largely treatable ^[1].
• ·You can get an idea at home with the finger test; if the gap is wider than two fingers or there is pain, consult a professional. Tissue tension matters as much as gap width ^[1][3].
• ·In the early period, avoid sit-ups, crunches, planks, and any movement that causes abdominal doming; take care not to lift heavy and to roll to your side when getting out of bed ^[1].
• ·Safe starting points: diaphragmatic breathing, transversus abdominis (abdominal draw-in), and pelvic floor exercises, followed by controlled movements such as pelvic tilts and heel slides ^[1][2][3].
• ·Progress gradually as long as there is no doming; if there is no improvement despite regular practice, or if incontinence or pelvic pain is present, see a physiotherapist ^[3].

Frequently Asked Questions

Does diastasis recti close on its own?

Sometimes it can. Smaller separations tend to recover within 4-8 weeks after birth ^[6]. Recovery depends on the size of the separation and how consistently you continue strengthening exercises ^[1]. With larger separations, full spontaneous closure is less likely, and specialist support is helpful ^[6].

How long after birth can I start exercising?

According to the NHS, abdominal exercises can be started after birth as soon as you feel comfortable; however, especially in the early days, you should avoid sit-ups, planks, and crunches and any movements that cause abdominal doming ^[2]. Gentle breathing and deep abdominal exercises can begin early, while the timing for more challenging movements is best judged individually. After a cesarean or any complications, it is recommended to get your own doctor's clearance.

Do sit-ups (crunches) make abdominal separation worse?

In the early postpartum period, it is a common recommendation to avoid sit-ups and crunches that push the abdominal wall outward ^[1]. Current research suggests these movements may not be as harmful as once thought, but that they should be reintroduced at the right time and with the right technique ^[5]. If they cause coning down your midline, it is too soon ^[3].

Does an abdominal binder (belly band) heal the separation?

An elastic belly band can help hold the abdomen in and support the lower back; however, on its own it does not heal diastasis recti or strengthen the abdominal muscles ^[1]. It is better thought of as a reminder to keep the abdominal muscles active and to maintain good posture ^[1].

Which muscle is most important, and how do I work it?

The deepest abdominal muscle, the transversus abdominis (TrA), is the main stabilizing muscle that wraps the trunk from the inside ^[6]. The most commonly recommended approach is to combine the abdominal draw-in (gently drawing the belly button toward the spine as you exhale) with a pelvic floor contraction ^[3][6]. Try to hold this contraction without pushing the abdomen outward, while breathing normally.

I gave birth years ago; can I still fix it?

Yes. According to Cleveland Clinic, with the proper exercises it is possible to fix the separation even years after your last delivery; it is never too late ^[1]. What matters is doing the right exercises regularly and with good technique.

I am not seeing results despite exercising. What should I do?

Visible improvement is generally expected within about six months of consistent work; if there is no progress in that time, it is sensible to see a physiotherapist ^[3]. If the separation is accompanied by urinary incontinence, pelvic floor problems, or pain, especially if these persist four months after birth, it is recommended to get a professional evaluation ^[3].

Can diastasis recti come back?

Yes. A healed diastasis can develop again in later pregnancies, and the risk increases with each pregnancy ^[1]. As the linea alba is stretched repeatedly, it can become harder for it to return to its original shape ^[1].