Severe heartburn during pregnancy: what to know

Pregnancy hormones can relax the valve between the stomach and oesophagus, while the growing uterus can add pressure later in pregnancy. Smaller meals, staying upright after eating, and avoiding personal trigger foods may help. Check any antacid or reflux medicine with a doctor, pharmacist, or maternity clinician because some products are unsuitable during pregnancy or can interfere with other medicines.

Heartburn is a burning feeling behind the breastbone caused when stomach contents move upward into the oesophagus. It may be worse after meals, when bending, or when lying down. A sour taste, burping, or fluid reaching the throat can occur alongside the burning. Symptoms alone cannot show whether another digestive problem is present, so a clinician may assess severe, changing, or persistent discomfort.

Eat smaller portions and leave time between dinner and lying down. Notice whether spicy, fatty, acidic, or caffeinated foods trigger your symptoms rather than excluding many foods automatically. Sit upright after meals, avoid tight clothing around the abdomen, and raise your upper body for sleep using a stable wedge rather than a pile of loose pillows.

If these changes are not enough, ask a pharmacist or maternity clinician to select a pregnancy-compatible option and explain when to take it. Mention prenatal vitamins, iron, prescribed medicines, kidney problems, and high blood pressure so interactions and ingredients can be checked.

Get urgent help for chest pressure or tightness, trouble breathing, faintness, sweating, pain spreading to the arm, jaw, back, or shoulder, vomiting blood, or black stools. During pregnancy, severe upper abdominal pain with a strong headache, vision changes, sudden swelling, or feeling very unwell also needs prompt maternity assessment.

Arrange a routine review if heartburn repeatedly disrupts sleep, swallowing is painful or difficult, food sticks, vomiting continues, you are losing weight without trying, or self-care is not controlling symptoms.

Ask which treatment fits your stage of pregnancy, how it should be separated from iron or other medicines, and what symptom change should trigger reassessment. You can also ask whether your pattern suggests acid reflux alone or whether an examination is needed.