What should you know about vomiting acid and blood?

A sour or burning fluid may be stomach acid, especially when little food remains. Repeated retching can inflame the lining or create a small surface tear, leaving bright-red streaks. Dark flecks or coffee-ground material may be older blood. Reflux, stomach inflammation, an ulcer, or an infection can also cause pain and vomiting. Acidic taste does not show where the blood started, and it does not make bleeding harmless.

Arrange same-day medical advice and describe whether the blood was bright red, dark, streaky, or mixed throughout. Rinse your mouth with water, remain upright, and take small sips only if you are alert and can keep fluids down. Avoid alcohol, smoking, and anti-inflammatory painkillers unless prescribed. Do not make yourself vomit. Keep track of repeated episodes, abdominal pain, stool colour, and any medicines.

Use emergency care for increasing or repeated blood, coffee-ground vomit, faintness, confusion, marked weakness, shortness of breath, severe chest or abdominal pain, or black stools. Seek urgent help if vomiting prevents hydration or if you take anticoagulants. If you feel faint, lie on your side and do not drive. A clinician may check for dehydration, anaemia, and an upper digestive-tract source.

Ask whether the acid symptoms suggest reflux or another stomach problem, whether you need tests, and which medicines can safely relieve nausea or irritation. Confirm what recurrence, stool changes, or pain should prompt emergency care.