diastasis-abdominal

Abdominal diastasis: What it is and how to correct it | Guide 2026

La abdominal diastasis It is a condition that affects many people, especially women after pregnancy. Although it may seem like a purely aesthetic concern, diastasis recti can have both functional and physical consequences. The separation of the abdominal muscles, which occurs in the midline, can not only change the appearance of the abdomen, but can also cause discomfort and make it difficult to perform certain daily activities.

This comprehensive guide explores everything you need to know about diastasis recti, its causes, consequences, and the best ways to correct it.

What is Abdominal Diastasis?

La abdominal diastasis is the separation of the rectus abdominis muscles, which are located in the midline of the abdomen. The rectus abdominis muscles are the “washboard” muscles and are essential for providing support to the central structure of the body. Under normal circumstances, these muscles are joined by a band of connective tissue called the linea alba, which provides stability and support.

When the rectus abdominis muscles become more separated than usual, either due to factors such as pregnancy or sudden increases in abdominal volume, as occurs in cases of morbid obesity, the linea alba stretches and forms a space between the muscles. This creates a distended abdomen, losing its shape and definition. In addition to the aesthetic effects, abdominal diastasis can interfere with the function of the abdominal muscles and posture, affecting the stability of the trunk.

What Causes Diastasis Recti?

It is usually a consequence of factors that increase intra-abdominal volume, which puts pressure on the rectus abdominis muscles. Although it can occur in various circumstances, the following are the most common: Common causes include:

1. Pregnancy

Pregnancy is the most common cause of diastasis recti. As the baby grows, the uterus expands and puts considerable pressure on the muscles of the abdomen. This pressure causes the rectus abdominis muscles to separate in the midline to accommodate the growing baby. As the uterus enlarges, the abdominal muscles lose their elasticity and do not always return to their original shape after delivery, which can leave a permanent separation.

It is important to note that diastasis recti does not only occur in women who have had a multiple pregnancy or a twin pregnancy. It can also occur in women with only one baby, especially if there was a rapid increase in the size of the abdomen. Diastasis recti is more likely in women who have had several pregnancies, as the skin and muscles in the abdominal area have already been stretched on previous occasions.

2. Weight gain

Excessive weight gain, especially in the abdominal area, can also lead to diastasis recti. This can be a result of obesity, where the volume of the abdomen increases considerably, putting excessive pressure on the abdominal muscles. When the muscles cannot adequately support this pressure, they separate, resulting in visible distension and a loss of abdominal definition.

3. Lack of muscle tone

Lack of abdominal exercise can contribute to the development of diastasis recti. The rectus abdominis muscles require proper training to maintain their tone and flexibility. If these muscles weaken over time, either through lack of exercise or aging, it can be more difficult to maintain the integrity of the linea alba. This lack of tone can also result in a gradual separation of the muscles.

4. Abdominal Surgeries

In some cases, abdominal surgeries, such as a cesarean section or bariatric surgery, can cause or worsen diastasis recti. Surgical incisions can affect the abdominal muscles and weaken the structure of the linea alba, which can contribute to the separation of the muscles. After these surgeries, the abdominal muscles may lose some of their strength, making it easier for diastasis to develop.

5. Genetic factors

Genetic factors may also play a role in the development of diastasis recti. Some people have a genetic predisposition that makes their abdominal muscles more prone to separating under pressure. The elasticity of muscles and connective tissues varies depending on each person's genetics, which may influence the propensity to develop diastasis recti.

Consequences of Abdominal Diastasis

Although abdominal diastasis may be primarily a cosmetic concern, its consequences can go beyond the superficial. This condition can affect both the function and aesthetics of the abdomen and, in some cases, can cause physical discomfort.

1. Distended abdomen

One of the most visible effects of diastasis recti is a distended, flabby abdomen. The separation of the rectus abdominis muscles creates a bulging shape that is often most noticeable after eating. Many people with diastasis recti experience their abdomen looking swollen or sticking out, even if they have lost weight in other areas of the body. This can be emotionally frustrating, as it is not the expected result of losing weight or trying to maintain a more toned figure.

2. Abdominal Weakness

Separation of the rectus abdominis muscles can weaken the structure of the core. The abdomen does not have the same ability to provide stability and support to the trunk, which can affect posture and mobility. People with diastasis recti may find it difficult to perform certain everyday activities, such as getting up from a chair, exercising, or even walking upright.

3. Back Pain and Other Postural Problems

Weakness in the abdominal area, caused by diastasis recti, can lead to problems with the spine. Without the stability provided by the abdominal muscles, the spine must do all the work of supporting the torso, which can lead to back pain, muscle tension, and other postural problems. People with diastasis recti may feel like they are leaning forward or have difficulty maintaining an upright posture due to weak abdominal muscles.

4. Urinary Incontinence

In some cases, abdominal diastasis can also affect the function of the pelvic floor, which is closely related to the abdominal muscles. Weakness in the abdominal muscles can affect intra-abdominal pressure and contribute to urinary incontinence, especially when coughing, sneezing or performing intense physical activities.

How to Correct Abdominal Diastasis

Although many people turn to conservative methods, such as abdominal exercises or physical therapy, to correct diastasis recti, in more severe cases, surgery may be the most effective solution.

1. Abdominal Exercises and Physiotherapy

In mild cases of diastasis recti, abdominal strengthening exercises and physical therapy may help improve muscle separation. Physical therapists specializing in abdominal rehabilitation can design an exercise program focused on strengthening the abdominal muscles without putting additional pressure on the linea alba. Breathing exercises, such as those taught in the Kegel method and some Pilates exercises, are especially effective in toning the deep abdominal muscles.

It is essential to avoid exercises that can worsen diastasis, such as traditional sit-ups (crunches) and postures that put too much pressure on the abdomen. Instead, it is recommended to work with a specialist who can guide the person in the correct exercises to reduce the separation of the rectus abdominis muscles.

2. Surgery: Rectus Abdominis Plication

When abdominal diastasis is severe or does not respond to non-surgical treatments, surgery may be an effective option. In this case, one of the most common interventions is plication of rectus abdominis muscles, which is usually done in the context of a tummy tuckDuring this procedure, the inner edges of the abdominal muscles that have been separated are sutured back to their original position in the midline.

Rectus plication is an effective surgical procedure to correct abdominal diastasis and give the abdomen a flatter and firmer appearance. In addition, this type of surgery is performed in conjunction with the removal of excess skin and fat, which improves the overall aesthetics of the abdomen.

3. Complementary Treatments

In some cases, surgeons recommend additional treatments, such as the use of lasers or muscle stimulation techniques, to improve the appearance of the skin and promote faster recovery. The use of technologies such as lasers can help improve skin elasticity and reduce the visibility of scars after surgery.

Preventing Diastasis Recti

While it is not always possible to completely prevent diastasis recti, especially during pregnancy, there are some practices that can reduce the risk of developing this condition:

  1. keep a healthy weight: Avoiding excessive weight gain and controlling the distribution of abdominal fat can reduce pressure on the abdominal muscles.
  2. Exercise during pregnancy: Performing appropriate exercises during pregnancy, always under the supervision of a professional, can help strengthen the abdominal muscles and minimize the risk of diastasis.
  3. Strengthen the core: Keeping your abdominal muscles toned before and after pregnancy, through core strengthening exercises, can help prevent muscle separation.

Conclusion

Diastasis recti is a common condition that affects both men and women, especially after pregnancy. Although it is more prevalent in pregnant women, it can also be caused by factors such as excessive weight gain, lack of exercise, or even abdominal surgeries. Although it can be a cosmetic concern, diastasis recti can also affect function and posture, so it is important to address it properly.

While exercises and physical therapy are viable options for mild cases, surgical procedures, such as rectus abdominis plication, may be the most effective solution in severe cases. If you have diastasis recti, consult with a plastic surgeon or abdominal rehabilitation specialist to explore the best treatment options to restore firmness and tone to your abdomen.

If you are looking for a plastic surgeon in Madrid, Our Plastic surgery clinic in Madrid We have a wide portfolio of cases of abdominoplasty before and after, which testify to the success of our cosmetic surgeries to correct the abdominal diastasis. Make an appointment without obligation for a Abdominoplasty in Madrid.

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Dr. Gustavo Sordo - Plastic Surgeon in Madrid

Dr. Gustavo Sordo is a renowned plastic, aesthetic and reconstructive surgeon in Spain, specializing in ultrasonic rhinoplasty and breast augmentation. Born into a family of artists, his approach combines art with medical science, delivering natural and personalized aesthetic results. A graduate of the University of Alcalá and trained at some of the most prestigious hospitals worldwide, Dr. Sordo has perfected advanced techniques in plastic and aesthetic surgery. He is also actively involved in training young surgeons and is a recognized figure in the media for his expertise in facial and breast surgery.

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