Why do hiccups occur?

The diaphragm normally moves smoothly with each breath. Its hiccup reflex can be triggered by a stretched stomach, swallowed air or irritation around the chest and upper digestive tract. A large meal, carbonated drinks, hot or spicy food, alcohol, laughing and emotional stress can all precede an episode. A single bout is usually brief. Frequent episodes with burning behind the breastbone, belching or a sour taste may fit with acid reflux; stomach irritation, including gastritis, can also cause upper digestive symptoms.

Sit upright and slow your breathing, allowing each breath out to be gentle and unhurried. Drink water in small sips rather than gulping. Once the episode passes, leave time between mouthfuls at meals and avoid lying down straight after a large meal. Notice whether fizzy drinks, alcohol or a particular food repeatedly precede hiccups. That pattern is more helpful to a clinician than trying many remedies at once.

Contact a clinician when hiccups persist, recur often or leave you unable to sleep, maintain fluids or finish meals. Prompt assessment is also needed if they occur with severe pain, fever, breathlessness, persistent vomiting, unexplained weight change, swallowing difficulty, weakness, altered speech or a new severe headache. The decision to seek help comes from the severity and accompanying symptoms, rather than from how common hiccups are.

Bring a record of the timing, possible triggers, other digestive symptoms and all medicines or supplements you use. Ask whether the pattern needs examination for reflux or stomach irritation, and whether changes to meals or targeted treatment could help.