Symptoms, diagnosis and treatment

Rectus diastasis: more than an aesthetic concern

Rectus diastasis is a widening and weakening of the linea alba between the two rectus abdominis muscles. It can alter the shape and function of the abdominal wall and may coexist with umbilical or epigastric hernias.

Pregnancy and abdominal wall changes associated with rectus diastasis
Pregnancy is one of the most common settings in which weakening and widening of the linea alba can develop.

Anatomical illustration comparing separated and approximated rectus abdominis muscles

Understanding the abdominal wall

What is rectus diastasis?

The two rectus abdominis muscles run vertically from the chest to the pubis and are joined in the midline by a strong connective structure called the linea alba. Rectus diastasis develops when this tissue becomes wider and thinner, allowing the muscles to move apart.

Rectus diastasis is not itself a true hernia because the abdominal contents are not necessarily passing through a defined hole. However, the weakened midline may be associated with an umbilical or epigastric hernia, which must be identified during the surgical assessment.

Key point

Rectus diastasis is a functional disorder of the abdominal wall. Its relevance depends not only on the measured width, but also on symptoms, tissue quality, abdominal contour and associated hernias.

Who can be affected?

Not only women after pregnancy

Pregnancy is a frequent setting, but rectus diastasis can affect women and men of different ages and body types.

After pregnancy

The progressive expansion of the abdomen can stretch and weaken the linea alba. The separation may persist months or years after childbirth, even after weight has returned to normal.

In men

Rectus diastasis may occur in men, particularly in association with central weight gain, repeated increases in abdominal pressure, intense physical effort or ageing of connective tissues.

After major weight change

Weight gain, weight loss and reduced tissue elasticity may reveal or worsen weakness of the abdominal midline. Skin excess and fat distribution must be assessed separately from the diastasis itself.

How it may present

Common signs and symptoms of rectus diastasis

Symptoms vary considerably. Some patients are mainly concerned by the change in abdominal shape, while others report functional problems affecting daily activities.

Thoracolumbar fascia anatomy and its relationship with abdominal core stability
The abdominal muscles and the thoracolumbar fascia contribute together to trunk stability. Changes in abdominal wall mechanics may therefore coexist with postural fatigue or lower-back discomfort. Each patient requires an individual clinical assessment.

Persistent abdominal bulging

A rounded or protruding abdomen that remains despite weight control and exercise, often becoming more evident later in the day.

Midline doming

A ridge or dome appearing along the centre of the abdomen during movements such as sitting up, coughing or lifting.

Core weakness and back discomfort

Reduced abdominal support may be associated with difficulty stabilising the trunk, postural fatigue or lower back discomfort.

Pelvic floor or digestive complaints

Urinary leakage, constipation, bloating or reflux may coexist with rectus diastasis, although these symptoms can have several different causes.

Umbilical or epigastric hernia

A small lump, tenderness or discomfort around the navel or in the upper midline may indicate an associated hernia.

Difficulty with certain movements

Some patients report discomfort or insecurity when bending, lifting, exercising, changing position or performing tasks that increase abdominal pressure.

These symptoms are not specific to rectus diastasis. A specialist examination is necessary to confirm the diagnosis and to exclude other causes of abdominal swelling, pain or weakness.

Specialist assessment

How rectus diastasis is diagnosed

The clinical examination is the central part of the diagnosis. Imaging is used selectively and is not routinely required before an in-person consultation.

Medical history

The assessment considers pregnancies, previous abdominal operations, weight changes, symptoms, physical activity and the patient’s functional and aesthetic priorities.

Clinical examination

The surgeon evaluates the width and length of the separation, tissue tension, abdominal contour, skin quality and any umbilical or epigastric hernia.

Imaging when needed

For an in-person consultation, ultrasound or CT is not routinely required beforehand. For a video consultation, an abdominal wall ultrasound or, preferably, a CT scan must be available for review.

A self-test performed at home may raise suspicion, but it cannot determine the severity of the condition or identify the most appropriate treatment.

A personalised surgical strategy

Treatment depends on anatomy, symptoms and skin quality

Physiotherapy can improve core control and function, especially in mild cases. When an established anatomical defect requires stable reconstruction, surgery is the only way to physically restore the linea alba.

Specialist physiotherapy

Targeted rehabilitation may improve breathing, posture, trunk control and pelvic floor coordination. It is also an important part of preparation and recovery for selected surgical patients.

Ask for an assessment

REPA

REPA is an endoscopic pre-aponeurotic repair performed through three small suprapubic incisions. It reconstructs the midline and can treat suitable associated hernias, with mesh reinforcement of the abdominal wall.

Learn about REPA

MILA

MILA combines abdominal wall repair with VASER-assisted liposculpture and Quantum RF skin tightening. It is considered in carefully selected patients requiring both functional repair and more complete abdominal remodelling.

Learn about MILA

Traditional abdominoplasty remains appropriate when there is a major excess of skin or an abdominal apron. The correct procedure can be chosen only after direct clinical evaluation.

Rectus diastasis assessment in Milan

Consult Dr. Salvatore Cuccomarino, MD, FACS

Dr. Salvatore Cuccomarino is a general surgeon focused on minimally invasive abdominal wall surgery. He performed the first REPA procedure in Europe in 2017 and has developed extensive experience in the surgical treatment of rectus diastasis and associated midline hernias.

International patients can arrange an in-person consultation in central Milan or begin with a video consultation via Google Meet. The indication for REPA, MILA, abdominoplasty or conservative treatment is established individually.

Consultations in Milan

Centro Medico Visconti di Modrone
Via Visconti di Modrone 7
20122 Milan, Italy

Surgery in Milan

H San Raffaele Resnati Day Surgery
Via Santa Croce 10/A
20122 Milan, Italy

Frequently asked questions

Rectus diastasis: practical information

Is rectus diastasis the same as a hernia?
No. Rectus diastasis is a widening and weakening of the linea alba rather than a true hole in the abdominal wall. However, umbilical or epigastric hernias may be present at the same time.
Can rectus diastasis affect men?
Yes. It can affect men, especially in association with central weight gain, repeated increases in abdominal pressure, intensive physical effort, previous surgery or ageing of connective tissues.
Can exercise close rectus diastasis?
Targeted physiotherapy can improve muscle control, posture and symptoms. In an established anatomical diastasis, however, exercise cannot physically reconstruct damaged or permanently widened connective tissue.
Do I need an ultrasound or CT scan before a consultation?
No imaging is routinely required before an in-person consultation. If the first assessment is performed by video, an abdominal wall ultrasound or, preferably, a CT scan must be sent in advance.
When is surgery considered?
Surgery may be considered when symptoms, abdominal wall weakness, associated hernias or a significant persistent deformity justify anatomical reconstruction. The indication is always individual.
Which operation is best: REPA, MILA or abdominoplasty?
There is no single procedure for every patient. REPA is mainly a functional minimally invasive repair, MILA adds abdominal remodelling in selected patients, and traditional abdominoplasty is generally more appropriate when there is major skin excess or an abdominal apron.

Specialist evaluation in Milan or online

Do you think you may have rectus diastasis?

Request an in-person consultation in Milan or an initial video consultation for international patients.

The information on this page is general and does not replace a specialist medical consultation. Diagnosis and suitability for treatment can be established only after an individual assessment.