Normal value of rectus abdominis distance
The normal distance between the rectus abdominis muscles is generally within 1 cm; however, after childbirth, women typically experience a slight widening of this distance.
The rectus abdominis muscles are usually located on either side of the midline of the anterior abdominal wall and are enclosed within the rectus sheath. They play important roles in maintaining intra-abdominal pressure and assisting in respiration, defecation, and childbirth. Under normal conditions, the distance between the rectus abdominis muscles is less than 1 cm. However, during pregnancy, as the fetus grows and the uterus expands, the abdomen enlarges, which may lead to diastasis recti (separation of the rectus abdominis muscles). After delivery, with appropriate exercise and over time, the muscles gradually return toward their normal anatomical position, and the separation typically does not exceed 2 cm.
If individuals experience symptoms such as abdominal heaviness, low back pain, or even pelvic organ prolapse and gastric ptosis in daily life, it may be due to excessive separation of the rectus abdominis muscles, resulting in weakened muscular support and inability of the abdominal muscles to properly connect and bear weight. It is recommended to seek timely medical evaluation and treatment under a physician's guidance to address the underlying cause and prevent more serious complications.