Hi, thank you for your question. A tummy tuck focuses on the lower abdomen and primarily involves the removal of excess skin and fat, as well as tightening of the abdominal muscles. A hiatal hernia, on the other hand, is a condition where the upper part of the stomach bulges through the diaphragm, and it's usually located in the upper abdominal area. In most cases, a tummy tuck should not have a direct impact on a hiatal hernia, as they involve different areas of the abdomen. However, it's essential to discuss your specific situation with a qualified plastic surgeon during a consultation. They can evaluate your overall health, consider your hiatal hernia, and help you determine if a tummy tuck is a safe and suitable option for you. Remember, it's always best to consult with your primary care physician and the surgeon who diagnosed your hiatal hernia to get a comprehensive understanding of your unique situation. Thank you for your question, and I hope this information has been helpful to you. Sincerely, Dr. Katzen