Diastasis Recti Treatment: Postpartum Core Strengthening and Abdominal Restoration

Pregnancy can change the body in ways that are not always easy to reverse. For some women, the abdomen may continue to look rounded or slightly protruded months or even years after giving birth. This can happen even after returning to a pre-pregnancy weight and maintaining a healthy lifestyle. One possible reason is diastasis recti, a condition in which the abdominal muscles separate during pregnancy.

While the change in abdominal appearance can be frustrating, diastasis recti can cause several physical and medical complications. A weakened abdominal wall may affect core stability, posture, movement, and everyday activities. Some women may also experience lower back discomfort or find it harder to return to exercise.

At MIRAE Medical Aesthetics, BodyStim is a non-surgical treatment option designed to support abdominal muscle strengthening after pregnancy. It uses targeted muscle stimulation together with bipolar radiofrequency (RF), addressing both muscle function and the appearance of the abdominal area. This guide explains what diastasis recti is, how it can affect the body, and where BodyStim may fit into postpartum recovery.

What Is Diastasis Recti and Why Does It Happen?

Diastasis recti refers to the separation of the two rectus abdominis muscles, which run vertically along the front of the abdomen. These muscles are connected along the centre of the abdomen by a band of connective tissue called the linea alba.

During pregnancy, the growing uterus places increasing pressure on the abdominal wall. The linea alba can become thinner and wider, allowing the abdominal muscles to move further apart. This is a normal adaptation to pregnancy. The body needs to make room for the growing baby, and the abdominal wall has to stretch as the pregnancy progresses.

After delivery, however, the tissues do not always return completely to their previous state. For some women, the separation gradually becomes smaller during the months following childbirth. For others, it may remain noticeable and continue to affect abdominal strength or appearance.

Why Pregnancy Can Lead to Diastasis Recti

The growing uterus creates sustained pressure against the abdominal wall. Hormonal changes during pregnancy also make connective tissues more flexible, allowing the body to accommodate these physical changes. Research suggests that diastasis recti is common during pregnancy, with some studies reporting abdominal separation in a substantial proportion of women during the third trimester. In many cases, the separation improves naturally after delivery. When it persists, however, targeted rehabilitation and professional assessment may be helpful.

How to Recognise Diastasis Recti

One of the most noticeable signs is a ridge or bulge running along the centre of the abdomen. This may become more obvious when getting up from a lying position, coughing, or performing movements that engage the abdominal muscles. This outward bulging is often referred to as doming. Other possible signs include:

• A feeling of weakness through the core
• Difficulty maintaining good posture
• Lower back discomfort
• Reduced abdominal stability
• Difficulty lifting or carrying objects
• Trouble returning to certain forms of exercise
• Pelvic floor symptoms in some women

A self-check can provide an initial indication, but it cannot provide a complete assessment. The width of the separation is only one part of the picture. Tissue tension, depth, muscle function, and other postpartum factors should also be considered. For this reason, a professional assessment is recommended before deciding on treatment.

How Does Diastasis Recti Affect Your Body?

The effects of diastasis recti vary from person to person. Some women notice mainly a change in the appearance of their abdomen, while others experience weakness or discomfort during everyday movement.

Functional Effects

The abdominal muscles are an important part of the body’s core support system. They help with stability, posture, and movement. When the abdominal wall is weakened, everyday activities such as lifting, carrying, bending, and twisting may feel more difficult. Some women describe the sensation as though their middle feels less supported than it did before pregnancy.

A weakened core can also affect how the body distributes movement and load. In some cases, the muscles around the lower back may have to work harder to compensate, potentially contributing to discomfort. Posture may change as well. Some women notice an increased curve through the lower back or find it less comfortable to maintain an upright position for extended periods.

The core and pelvic floor also work together to support the trunk and pelvis. For this reason, some women with postpartum core weakness may also experience pelvic floor symptoms, such as urinary leakage or pelvic pressure.

Aesthetic Effects

Many women describe the persistent rounded area of the abdomen after pregnancy as a “mommy pooch.” The abdomen may continue to project forward even after pregnancy weight has been lost. This can be frustrating, particularly when regular exercise and a healthy lifestyle have not produced the abdominal appearance someone expected.

It is important to remember that a postpartum abdomen is not simply a matter of weight or body fat. Muscle separation and changes to the connective tissue can also influence the shape of the abdominal wall. For some women, addressing the underlying core weakness is therefore just as important as addressing appearance.

Why Traditional Exercise May Not Be Enough

Exercise remains an important part of postpartum recovery. However, more exercise does not necessarily mean better recovery when diastasis recti is present. The type of exercise and the way the core is being engaged matter.

Limitations of Standard Core Exercises

Traditional abdominal exercises such as crunches and sit-ups can increase pressure inside the abdomen. If the deep core muscles are not working effectively, this pressure may cause the abdomen to push outward rather than providing controlled support. The same applies to exercises such as planks when they are performed without appropriate core control.

This does not mean that every woman with diastasis recti must permanently avoid these exercises. Rather, exercise selection and technique should be based on the individual’s condition and ability to control abdominal pressure.

The Risk of Using the Wrong Exercises

Certain movements involving heavy lifting, repeated spinal flexion, or twisting may be challenging for someone with poor abdominal control. When performed incorrectly, they can increase abdominal pressure and make doming more noticeable. This is why postpartum core rehabilitation is often more effective when it focuses on movement quality rather than simply increasing the intensity of exercise.

Why Deep Core Activation Matters

The transverse abdominis is one of the deep abdominal muscles involved in core stability. It works together with other muscles to support the trunk and help control abdominal pressure. Learning to engage these muscles properly can be difficult, particularly when there is significant abdominal separation or when the body has developed compensatory movement patterns. Targeted rehabilitation can help women understand how to activate their core more effectively and safely.

What Is BodyStim Treatment for Diastasis Recti?

BodyStim is a non-surgical treatment that uses targeted muscle stimulation to support abdominal muscle strengthening. At MIRAE Medical Aesthetics, the treatment combines electrical muscle stimulation with bipolar radiofrequency energy. The two technologies serve different purposes.

A Non-Surgical Treatment Approach

BodyStim does not require surgical incisions or general anaesthesia and is designed to be performed in a clinical setting without an extended recovery period. During treatment, patients generally feel rhythmic muscle contractions along with warmth from the RF component. The intensity can be adjusted according to individual comfort.

What Are the Benefits of BodyStim for Postpartum Recovery?

For women who are suitable candidates, BodyStim may form part of a broader approach to postpartum abdominal recovery.

Complementing Pelvic Floor Rehabilitation

The abdominal muscles and pelvic floor work together as part of the body’s core support system. BodyStim does not directly treat pelvic floor dysfunction. However, improved core stability may complement a broader pelvic floor rehabilitation programme when appropriate.

Who May Be Suitable for Diastasis Recti Treatment?

BodyStim may be considered for women experiencing persistent abdominal separation or weakness following pregnancy. Women who have recently given birth should first receive medical clearance from their obstetrician or healthcare provider. The body needs sufficient time to recover from pregnancy and childbirth before starting treatment.

For women who gave birth several years ago, treatment may still be worth discussing if abdominal separation or core weakness remains. The timing of treatment is not determined solely by how long ago someone gave birth. A person’s current health, recovery status, severity of the separation, and treatment goals all matter.

BodyStim may be more appropriate for mild to moderate cases, while more significant separation may require additional forms of rehabilitation or intervention.

Safety Considerations and Contraindications

BodyStim is not suitable for everyone. Women who are pregnant or who have certain medical conditions or contraindications to electrical muscle stimulation or radiofrequency treatment should not undergo the procedure. A consultation and appropriate medical assessment are important before treatment. This allows the practitioner to determine whether BodyStim is appropriate and whether other treatment or rehabilitation may be more suitable.

What Can You Expect from Diastasis Recti Treatment?

Initial Assessment

Treatment begins with an assessment of the abdominal area. The extent of muscle separation, core function, tissue condition, and individual goals can all be considered when developing a treatment plan. At MIRAE Medical Aesthetics, Dr Cherie Lau conducts an assessment to determine an appropriate treatment protocol based on each patient’s needs.

Treatment Sessions

Treatment frequency and duration depend on the individual. A typical session may last approximately 30 to 45 minutes, with sessions scheduled weekly or every two weeks depending on the treatment plan. During a session, electrical stimulation produces repeated abdominal muscle contractions. Most patients describe the sensation as a deep pulsing or tightening. The RF component produces a warming sensation on the skin. Treatment intensity can be adjusted to ensure the experience remains comfortable and tolerable.

A course may involve approximately 6 to 12 sessions, although the number required varies depending on the individual’s condition and response to treatment.

Recovery and Downtime

BodyStim does not generally require significant downtime. Most women can return to their usual activities after treatment. Some may experience temporary muscle soreness, similar to the feeling after exercise, which generally settles within a day or two.

When Do Results Appear?

Postpartum recovery is gradual, and results differ from one person to another.

• First few weeks: Some women may begin noticing changes in muscle engagement and core strength
• Following weeks: Further improvements may become more noticeable as muscle strength develops
• Several months: The full effect of treatment may continue to develop as muscle conditioning and tissue remodelling take place

It is important to view BodyStim as part of an overall recovery process rather than as a quick fix.

Maintaining Your Results

Long-term results are supported by good movement habits, appropriate exercise, and continued attention to core engagement. Depending on individual needs, Dr Cherie Lau may also recommend lifestyle adjustments or exercises to support ongoing recovery. Some women may choose maintenance treatments as part of their longer-term approach.

When Can You Start Treatment After Giving Birth?

There is no single timeline that applies to every woman. The appropriate time to begin treatment depends on the type of delivery, recovery progress, general health, and medical clearance.

Can BodyStim Be Combined with Other Postpartum Treatments?

BodyStim can be used on its own, but it may also form part of a broader postpartum treatment plan. Every woman’s concerns are different. Some may be primarily concerned about core weakness, while others may also have loose skin, stubborn fat, or stretch marks.

Potential Combinations

For women with persistent areas of fat after pregnancy, body contouring treatments may be considered alongside muscle-focused treatment. Women with more noticeable skin laxity may benefit from treatments designed to improve skin firmness and elasticity. Stretch marks are another common change after pregnancy, and depending on their appearance and individual needs, treatments such as laser therapy may be considered.

These treatments do not necessarily need to be performed together. The right combination depends on the individual’s condition, priorities, and recovery stage.

Dr Cherie Lau’s Personalised Assessment

Dr Cherie Lau takes an individualised approach to postpartum treatment planning, beginning with an assessment of the patient’s condition and goals. Rather than using the same treatment plan for everyone, the aim is to recommend an approach that fits the individual’s recovery stage, lifestyle, and expectations.

Restoring Your Core Strength at MIRAE Medical Aesthetics

Diastasis recti is a common postpartum concern, but it does not have to be something women simply accept without assessment. For some, the main concern is a persistent abdominal bulge. For others, it may be weakness, poor core stability, back discomfort, or difficulty returning to exercise.

Understanding the underlying cause is an important first step. BodyStim offers a non-surgical approach that combines targeted muscle stimulation with bipolar RF to support abdominal muscle strengthening and improve the appearance of the abdominal area.

At MIRAE Medical Aesthetics, treatment begins with an individual assessment so that the approach can be tailored to each patient’s needs. Postpartum recovery takes time. There is no need to rush the process or expect your body to return to its pre-pregnancy state overnight. With the right assessment, appropriate exercise, and suitable treatment when needed, you can work towards stronger core function and greater confidence in your body.

👉 If you are concerned about persistent abdominal separation after pregnancy, book a consultation with MIRAE Medical Aesthetics to discuss your concerns and find out whether BodyStim may be suitable for you.