Bloated stomach due to constipation: what to know

Constipation may involve hard stools, straining, fewer bowel movements than usual, or a feeling that the bowel has not emptied. As stool remains in the colon, gas can become harder to pass and the abdomen may feel stretched or uncomfortable. Common contributors include too little fluid, a sudden change in fibre, low activity, changes in routine, and medicines that slow the bowel.

Bloating linked with constipation often improves after passing stool or gas. Ongoing symptoms can also occur with irritable bowel syndrome, an underactive thyroid, or diverticular disease, so the pattern matters more than one isolated episode.

Drink fluids regularly unless a clinician has told you to restrict them, and increase fibre gradually through foods such as vegetables, fruit, beans and whole grains. A rapid fibre increase can temporarily worsen gas. Gentle walking and responding to the urge to open your bowels may support movement. A pharmacist can explain whether a short-term laxative is suitable and how to use it safely. Nutrition Counselling may help you identify food and routine triggers.

Seek urgent medical help for severe or worsening abdominal pain, repeated vomiting, a swollen abdomen with inability to pass stool or gas, faintness, or blood in the stool. Arrange a medical review when constipation keeps returning, begins suddenly without a clear reason, or comes with unintentional weight loss, persistent tiredness or a change in bowel habit.

Ask what might be slowing your bowel, whether any medicines could contribute, and which fibre or laxative plan fits your health. Mention how often you pass stool, its consistency, pain, vomiting, bleeding, and when the bloating started.