Peritoneal Dialysis Explained: 10 Things Need to Know About This Kidney Treatment

5. Who It's Not Appropriate For

Peritoneal dialysis is not appropriate for every patient who needs treatment with dialysis. An individual who has widespread scarring in the abdominal area may not be able to have a catheter implanted. Because peritoneal dialysis depends on the semi-permeable peritoneal barrier, someone who has a hernia may not have a strong enough barrier to keep the solution from coming in contact with internal abdominal organs. Peritoneal dialysis requires a degree of responsibility and capability of the patient or a dedicated caregiver to ensure treatments are performed correctly and consistently. Many hours of training is required for both the patient and their caregiver to learn how to perform the treatments properly. Affected individuals who also have frequent diverticulitis or an inflammatory bowel disease may not be eligible to use peritoneal dialysis. Those who do not desire to perform the work associated with this type of treatment and would rather have it done by medical staff in a facility may choose to have hemodialysis instead.

6. Dietary Freedoms and Sodium Savvy

One of the less obvious but significant advantages of peritoneal dialysis is the increased dietary flexibility compared to hemodialysis. Because PD is performed more frequently, waste products and fluids are cleared more continuously, mimicking natural kidney function more closely. This often means less stringent restrictions on fluids, potassium, and phosphorus, allowing patients a broader range of food choices. However, patients still need to be "sodium savvy," as the dialysis solution contains dextrose (a sugar) that can contribute to fluid retention if too much sodium is consumed. A focus on balanced, low-sodium meals remains crucial for optimal fluid management.