What does a hiatal hernia often cause?

• A. Severe abdominal cramping
• B. Acid reflux and heartburn
• C. Intestinal obstruction
• D. Constipation

Answer: (B)

A hiatal hernia occurs when a portion of the stomach pushes through the diaphragm into the chest cavity. This displacement can disrupt the normal anatomy of the digestive system, particularly affecting the lower esophageal sphincter (LES). The LES is responsible for preventing the backflow of stomach contents into the esophagus. When a hiatal hernia is present, the functioning of the LES may be compromised, leading to conditions such as gastroesophageal reflux disease (GERD).

As a result, individuals with a hiatal hernia often experience acid reflux and heartburn. Acid reflux occurs when stomach acid flows back into the esophagus, causing irritation and discomfort, commonly manifesting as a burning sensation in the chest or throat. Heartburn is a primary symptom associated with this reflux, making it a significant concern for those with a hiatal hernia.

Other options, while they may represent gastrointestinal issues, are not directly associated with hiatal hernias. Severe abdominal cramping specifically relates to conditions that cause intestinal spasms or obstruction rather than the structural displacement seen in a hiatal hernia. Intestinal obstruction pertains to blockages in the bowel, which are not caused by a hiatal hernia. Similarly, constipation is typically a result of multiple factors such