What Causes Acid Reflux in Adults?

What causes acid reflux in adults? Several factors are considered to be contributing factors, including a relaxed lower oesophagal sphincter, Alginic acid, and Hiatus hernia. There are several things you can do to alleviate the symptoms of acid reflux. Here are some of the most common causes:

Alginic acid

Many patients with chronic GERD may benefit from an over-the-counter medication called alginate. This acid-reducing agent reduces acid reflux through its foaming and floating properties. Alginate forms a raft within a few seconds of dosing. Alginates displace the postprandial acid pocket and can also bind to cations. This makes them a particularly attractive target for reflux treatment.

Relaxation of the lower oesophagal sphincter

The lower oesophagal symphysis (LES) is a ring of muscles that opens and closes during swallowing. It allows stomach contents to enter the oesophagus and prevent food from backing up. When the LES relaxes too much, stomach acid is allowed to flow back into the oesophagus. This causes the infamous burning sensation in the mid-abdominal area and chest.

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Hiatus hernia

A hiatus hernia occurs when part of the stomach squeezes through a hole in the hiatus. This can lead to a condition known as a paraesophageal hernia, which can cause a life-threatening emergency. Hiatal hernias are more common in older people, overweight people, and women. Doctors can diagnose a hiatus hernia using an X-ray.


In patients with adult-onset asthma, the location of acid reflux in the oesophagus may be the cause of symptoms. In the study below, reflux was measured using the HMII. The frequency of total reflux events was higher in patients with abnormal proximal exposure than in patients without this complication. Both groups had similar acid clearance times. In addition, the number of reflux episodes was significantly higher among those with abnormal proximal exposure, even after adjustment for asthma severity.


If you are pregnant and are experiencing heartburn, you may be wondering if pregnancy causes acid reflux in adults. During pregnancy, the hormone progesterone slows digestion, which is why you should eat smaller meals throughout the day. Avoid spicy and fatty foods, and limit your consumption of citrus fruits. Sleep on your left side to avoid acid reflux and try to eat a smaller meal two to three hours before bed. You may also want to chew sugarless gum before bed to neutralize stomach acid.

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Medications can cause heartburn, GERD, or oesophagal reflux. Some of these drugs include tricyclic antidepressants, imipramine, and nortriptyline. Some medications can cause heartburn, such as tetracyclines, but newer formulations are less likely to cause heartburn. Your doctor can suggest ways to avoid the symptoms of heartburn, such as limiting your intake of these drugs.


There are two basic types of surgery for acid reflux in adults: traditional operations and endoscopic procedures. Traditional operations use small abdominal incisions to wrap part of the stomach around the lower oesophagal sphincter and stop the acid reflux. Endoscopic procedures, on the other hand, are less invasive and can be nearly as effective. Partial fundoplication, also known as “the wrap,” is a minimally invasive procedure that wraps part of the stomach around the oesophagus. This technique also prevents excessive heat from damaging other parts of the body.

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