

Dr Kieron Lim
Senior Gastroenterologist & Hepatologist
MBBS, University of London, Member, Royal College of Physicians (UK), Fellow, Academy of Medicine (Gastroenterology) Singapore, Fellow, Royal College of Physicians (Edinburgh)
Some of the most common symptoms of gastro-oesophageal reflux disease (GERD) include heartburn, regurgitation, a sour taste in the mouth, difficulty swallowing, nausea, coughing and hoarseness. This is often caused when the stomach's contents flow back into the oesophagus, known as acid reflux.
You should seek medical attention if these symptoms occur frequently, persist despite initial measures, or are accompanied by warning signs such as difficulty swallowing, unexplained weight loss or severe chest pain.
As some of these symptoms resemble those of other digestive, respiratory or heart conditions, recognising their pattern is important. An acid reflux specialist can assess the most likely cause and help determine whether further testing, monitoring or treatment is needed.
GERD and acid reflux do not always present as heartburn alone. Symptoms can affect the chest and digestive tract, while reflux that reaches higher into the throat may also be associated with coughing, hoarseness or throat discomfort. The way symptoms present can also vary, with some becoming more noticeable after meals, when bending over or while lying down.
Heartburn is a burning sensation behind the breastbone that may rise towards the throat. It commonly develops after meals or when lying down, particularly if stomach contents flow back into the oesophagus.
Regurgitation occurs when stomach contents travel back into the throat or mouth. This may produce a sour or bitter taste and can sometimes feel as though food or liquid is coming back up.
Some people experience difficulty swallowing, pain during swallowing or the sensation that food is sticking in the chest or throat. These symptoms may develop when repeated acid exposure irritates or narrows the oesophagus.
Reflux reaching the throat may irritate the voice box and airways. This can contribute to a persistent cough, frequent throat clearing, a hoarse voice or a sensation of having a lump in the throat.
GERD may also cause nausea, bloating or discomfort in the upper abdomen. These symptoms are less specific and may occur with other digestive conditions, so medical assessment may be required to identify their cause.
You should seek medical treatment for GERD when symptoms begin to interfere with your daily life, or continue despite self-care and basic management. These patterns of symptoms may require further evaluation:
Frequent or worsening heartburn:
Heartburn becomes more regular, severe or difficult to control over time.
Limited improvement with initial measures:
Lifestyle changes or over-the-counter medicines provide little or only temporary relief.
Difficulty or pain when swallowing:
Food feels stuck in the throat or chest, or swallowing becomes uncomfortable.
Persistent nausea or vomiting:
Repeated vomiting makes it difficult to eat, drink or keep food down.
Unexplained weight loss or reduced appetite:
Losing weight without trying or experiencing a noticeable decline in appetite warrants medical assessment.
Signs of digestive tract bleeding:
Blood in vomit, vomit resembling coffee grounds or black, tarry stools require urgent medical attention.
Severe or unfamiliar chest pain:
Chest pain accompanied by breathlessness, sweating or pain spreading to the arm, back, neck or jaw requires immediate medical attention.
GERD is usually diagnosed by assessing the patient's symptoms, medical history and response to initial treatment. Your doctor will often ask for details such as whether symptoms worsen after meals or when lying down. If further assessment is needed, a gastroenterologist may recommend tests such as:
GERD treatment may include lifestyle and dietary changes, acid-reducing medication and, for selected patients, anti-reflux procedures or surgery. The approach depends on the severity of symptoms, contributing factors and response to previous treatment.
Lifestyle measures can help reduce reflux and improve symptom control. These may include eating smaller meals, avoiding lying down for 2–3 hours after eating, elevating the head of the bed, maintaining a healthy weight and stopping smoking. Some patients may also benefit from identifying foods or drinks that trigger their symptoms.
Antacids can provide short-term relief, while H2-receptor blockers and proton pump inhibitors reduce stomach acid for longer-lasting symptom control. Proton pump inhibitors may also help heal inflammation in the oesophagus. The type, dose and duration of medication depend on symptom severity and treatment response.
Some medicines can worsen reflux by affecting the lower oesophageal sphincter or irritating the digestive tract. A doctor may review the patient's existing medications and adjust them where appropriate. Prescribed medication should not be stopped without medical advice.
Surgery may be considered when GERD remains poorly controlled despite lifestyle changes and medication. Options include:

GERD can present differently between patients, from typical heartburn and regurgitation to less obvious throat or swallowing symptoms. As the pattern, severity and contributing factors can vary, assessment and treatment should be tailored to the individual rather than based on symptoms alone, making personalised care important.
At Kieron Lim Gastroenterology, we provide comprehensive assessments and personalised treatments for patients experiencing acid reflux and other digestive concerns. Senior Consultant Gastroenterologist and Hepatologist Dr Kieron Lim evaluates each patient's symptoms, medical history and test findings to recommend an appropriate management plan.
If acid reflux is persistent, worsening or affecting your daily life, schedule an appointment with us for further evaluation.

Meet Our Doctor
Dr Kieron Lim
Senior Consultant Gastroenterologist & Hepatologist
MBBS, University of LondonMember, Royal College of Physicians (UK)Fellow, Academy of Medicine (Gastroenterology) SingaporeFellow, Royal College of Physicians (Edinburgh)
Dr Kieron Lim is a senior consultant specialising in Gastroenterology and Hepatology, providing comprehensive care for patients with gastrointestinal conditions in Singapore. His expertise extends to disorders affecting the oesophagus, stomach, colon, liver, pancreas, and gallbladder. Through his experience, Dr Lim enhances patient outcomes by facilitating early detection and timely medical interventions.