Dark yellow urine and liver problems

Urine may deepen in colour after sweating, fever, vomiting, diarrhoea, or simply drinking less. Heat exhaustion can combine fluid loss with dizziness, headache, weakness, nausea, and heavy sweating. Liver inflammation or a problem moving bile can add a tea-coloured or brown tint because bile pigment leaves through urine. Hepatitis A and hepatitis B are examples of infections that can inflame the liver, but dark yellow urine by itself does not identify either infection.

Look for accompanying changes such as yellowing of the eyes or skin, pale bowel movements, itching, unusual tiredness, nausea, or discomfort under the right ribs. Medicines, supplements, and foods can also alter urine colour, so a full history matters.

Drink fluids steadily if you are able to do so and check whether the colour lightens. Avoid alcohol until the cause is clearer, and do not stop prescribed medicine without advice. Note the colour, timing, recent heat exposure, new medicines or supplements, and any changes in stools, skin, eyes, appetite, or energy. Arrange a medical review if the change persists, recurs without an obvious fluid-related reason, or comes with other symptoms. A clinician may examine you and request blood or urine tests.

Seek urgent care for yellow eyes or skin with confusion, severe weakness, repeated vomiting, marked abdominal pain, fever, fainting, or inability to keep fluids down. Get prompt advice if urine becomes brown or remains dark despite drinking, particularly when pale stools or worsening jaundice appear.

Ask what causes are most consistent with your other symptoms, whether liver or urine tests are needed, whether any medicine or supplement could explain the colour, and what warning signs should trigger same-day care.