
Abdominal muscle separation, also known as diastasis recti, is a condition that occurs when the left and right abdominal muscles separate, causing the abdomen to protrude. This condition is common during and after pregnancy due to the growing uterus putting pressure on the belly, but it can also occur in men due to yo-yo dieting, incorrect weight lifting, and other factors. Abdominal muscle separation can be measured in finger widths, with a gap of more than two fingers or 2.7 cm indicating diastasis recti. The condition can cause low back pain, constipation, urine leaking, and difficulty breathing or moving normally. Treatment options include physical therapy, at-home exercises, and in some cases, surgery.
| Characteristics | Values |
|---|---|
| Medical term | Diastasis Recti |
| Definition | A gap of 2.7 cm between the left and right sides of the rectus abdominis muscle |
| Causes | Pregnancy, yo-yo dieting, sit-ups, incorrect weight lifting |
| Symptoms | Lower back pain, constipation, urine leaking, difficulty breathing, difficulty with normal movement |
| Diagnosis | Self-test, ultrasound, measuring tape, caliper |
| Treatment | Physical therapy, exercises, tummy tuck |
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What You'll Learn

Diastasis Recti
There are several ways to manage and treat diastasis recti. It is recommended to avoid activities and exercises that strain the abdominal muscles, such as crunches, sit-ups, and heavy lifting. Instead, gentle movements and exercises that tighten the abdominal muscles are encouraged. Core strengthening exercises, such as Pilates, can be beneficial, but it is important to work with a qualified trainer who understands diastasis recti. Maintaining good posture and practising deep breathing can also help manage the condition.
In most cases, surgery is not required to treat diastasis recti. However, severe cases that persist long after childbirth may require surgical intervention, such as a tummy tuck. It is important to consult with a healthcare provider to determine the best course of treatment, which may include physical therapy or at-home exercises to heal the separation without surgery. With proper management and treatment, it is possible to repair diastasis recti and restore core strength.
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Causes
Abdominal muscle separation, or diastasis recti, is a condition that occurs when the rectus abdominis muscles (also known as the "six-pack" muscles) separate, causing a gap in the abdomen. While this condition is commonly associated with pregnancy due to the expanding uterus putting pressure on the abdominal muscles, it can also affect men and non-pregnant women. Here are some detailed causes of abdominal muscle separation:
Pregnancy
Pregnancy is the most common cause of abdominal muscle separation. As the uterus expands during pregnancy, it puts pressure on the abdominal muscles, leading to their separation. This is further exacerbated by hormonal changes during pregnancy, such as the release of relaxin, which softens the connective tissue, making it more susceptible to stretching and weakening. The condition often becomes more noticeable after childbirth as the abdomen contracts back to its pre-pregnancy size. Abdominal muscle separation is particularly common in older pregnant women, obese pregnant women, women pregnant with large babies or multiples, and women who have been pregnant before.
Yo-yo dieting and weight fluctuations
Significant weight fluctuations, such as those experienced during yo-yo dieting, can contribute to abdominal muscle separation. This is because the abdominal muscles and connective tissue are stretched and weakened, leading to a gap forming between the muscles.
Intense abdominal workouts and improper weightlifting
Certain high-intensity exercises that strain the abdominal wall, such as traditional sit-ups, crunches, and heavy lifting without proper form, can exacerbate abdominal muscle separation. This is especially true if the core is not properly engaged during these exercises, as the weak core increases the risk of muscle separation.
Everyday activities
Everyday activities that put pressure on the core, such as bearing down during a bowel movement, holding your breath while lifting something heavy, or even standing up and sitting down, can contribute to abdominal muscle separation.
Yoga and swimming
Some yoga poses, such as downward dog, and swimming can worsen abdominal muscle separation. These activities put pressure on the abdominal muscles and can increase the gap between them.
While abdominal muscle separation can occur for various reasons, it is important to note that it is not always permanent. With proper management, treatment, and specific exercises, many individuals can reduce the separation and improve their core strength and stability.
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Diagnosis
Abdominal muscle separation, also known as diastasis recti, rectus abdominis diastasis (RAD), or abdominal separation, is a common condition that occurs during pregnancy. It can cause a gap in the abdomen, resulting in a protruding belly or "pooch". While it usually develops in the third trimester, signs of abdominal muscle separation may not be noticeable until several weeks after giving birth.
To diagnose abdominal muscle separation, individuals can look out for certain signs and symptoms and consult a healthcare professional for a formal diagnosis. Here are some ways to identify and diagnose abdominal muscle separation:
- Visual cues: One of the most noticeable signs of abdominal muscle separation is a visible bulge or protrusion in the abdomen, often referred to as a "pooch." This bulge typically appears just above or below the belly button, giving the appearance of a pregnant belly months or years after childbirth.
- Self-test: A simple self-test can be performed to check for abdominal separation. Lie on your back with your knees bent and feet flat on the floor. While lifting your upper body slightly, as if doing a crunch, use two fingers to gently press down on your stomach just above, at, and below the belly button. If you feel more than two fingers' width of space between your abdominal muscles, it indicates likely abdominal muscle separation.
- Physical symptoms: Abdominal muscle separation can also present with physical symptoms such as lower back pain, abdominal discomfort, constipation, urinary incontinence, frequent bloating, and changes in posture. These symptoms may vary in intensity and are not always present in all individuals with abdominal muscle separation.
- Healthcare professional diagnosis: If abdominal muscle separation is suspected, consulting a healthcare professional, such as a physiotherapist or a doctor, is recommended. They can perform a thorough physical examination, taking into account the width, depth, and length of the separation along the abdomen. Healthcare professionals may also use finger widths, measuring tapes, instruments, or ultrasounds to determine the extent of the muscle separation. Additionally, they will consider your medical history, including any pregnancies, to make a comprehensive diagnosis.
It is important to note that abdominal muscle separation can worsen with certain activities and exercises, such as sit-ups, yoga poses like downward dog, heavy lifting, and swimming. Seeking guidance from a healthcare professional is crucial to receiving an accurate diagnosis and developing an appropriate treatment plan.
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Treatment
Exercise and Physiotherapy
Physiotherapy and targeted exercises are often recommended as the first-line treatment for diastasis recti. Exercises that strengthen the transverse abdominal muscles, such as engaging the TVA muscle by bringing your belly button towards your spine, can help improve symptoms and reduce the inter-recti distance during contraction. It is important to work with a trained professional who understands diastasis recti to ensure safe and effective exercises during or after pregnancy.
Posture Improvement
Maintaining good posture is crucial for preventing and treating diastasis recti. This includes standing up straight, avoiding slouching, and tucking your belly towards your spine. When sitting, use a lumbar roll to support your lower back, and avoid bending at the waist when getting out of bed. Instead, roll onto your side and use your arms and legs to push yourself into a sitting position.
Weight Management
Excessive weight gain, especially during pregnancy, can increase pressure on the abdominal muscles, making them more prone to separation. Following healthcare provider recommendations for healthy weight gain during pregnancy can help prevent diastasis recti. Maintaining a healthy weight through proper diet and exercise can also aid in treating and preventing further muscle separation.
Surgery
In severe cases of diastasis recti, surgery may be necessary. Surgical options include open surgery, laparoscopic surgery, and robot-assisted surgery. Abdominoplasty, or a "tummy tuck," is often associated with repairing diastasis recti, but it is not always required. Surgery typically involves making incisions, elevating the skin and tissue above the abdominal fascia, and joining the separated abdominal muscles with non-dissolvable sutures.
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Prevention
Diastasis recti, or abdominal separation, is a common condition affecting 6 in 10 women after childbirth. It occurs when the abdominal muscles split down the middle, causing the abdomen to stick out and creating a "pooch". While it is usually painless, it can cause discomfort and weakness in the core.
To prevent abdominal separation, it is important to avoid certain activities and exercises that can exacerbate the condition. These include crunches, sit-ups, push-ups, press-ups, front planks, swimming, some yoga poses such as downward dog, and anything that puts pressure on the core, such as holding your breath while lifting heavy objects.
Pregnant women should be especially careful, as diastasis recti is commonly caused by the uterus expanding and stretching the abdominal muscles. It is recommended to avoid exercises that target the outer abdominal muscles, such as sit-ups and crunches, during pregnancy. Instead, focus on exercises that strengthen the transverse (deep core) belly muscles, such as Pilates, but only under the guidance of a trained professional who understands diastasis recti.
Additionally, maintaining a healthy weight and avoiding yo-yo dieting can help prevent abdominal separation. In some cases, surgery, such as a tummy tuck, may be an option to correct the condition, but it is important to consult with a qualified healthcare provider to determine the best course of treatment.
If you are experiencing symptoms of diastasis recti, it is important to consult with a healthcare provider for a proper diagnosis and treatment plan. They may recommend gentle exercises or refer you to a physical therapist to help bring the abdominal muscles back together.
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