Can Constipation Cause Lower Back Pain?

Constipation typically does not directly cause lower back pain. However, in cases where constipation becomes severe, it may lead to partial or complete bowel obstruction—often referred to as a blocked intestine. When this occurs, the buildup of gas and stool can cause the intestines to swell and expand, potentially leading to a feeling of pressure or discomfort in the lower back area.

In some situations, back pain may not be caused by constipation itself, but rather by an underlying condition that leads to both symptoms. For example, conditions such as abdominal tumors, intestinal spasms, or paralytic ileus (a type of bowel obstruction) can result in both constipation and back pain. In these cases, constipation acts more as a secondary symptom rather than the root cause.

Moreover, if a person already suffers from spinal issues—such as lumbar disc problems—that affect the nerves controlling the rectum and pelvic region, there can be a mutual worsening of symptoms. This means that existing back pain might contribute to constipation, while constipation can, in turn, intensify back discomfort.

In summary, while constipation alone rarely causes back pain, it can play a role in exacerbating discomfort when other medical conditions are present. If you experience persistent back pain along with chronic constipation, it's important to consult a healthcare professional to identify any potential underlying causes.