If your pee is dark yellow, what does it mean?

Urine naturally becomes more concentrated when your body has less water available. It may look deeper yellow after sweating, vomiting, diarrhoea, a fever, exercise, or a long period without drinking.

A darker yellow colour can be a simple sign that you need fluids. Some vitamins, especially certain B vitamins, can also make urine bright or deep yellow. Foods, medicines, and supplements may alter urine colour as well.

Urine that looks brown, tea-coloured, or cola-coloured is different from ordinary dark yellow urine. It can occur with dehydration, but it can also accompany blood, muscle breakdown, or a problem involving the liver or bile ducts. Hepatitis can cause dark urine along with yellowing of the skin or eyes.

If you otherwise feel well and can drink safely, sip water regularly and watch whether your urine becomes paler as you rehydrate. Choose extra fluids after heat exposure, exercise, or an illness that causes fluid loss.

Avoid assuming that every dark colour is dehydration. Note recent medicines, vitamins, strenuous activity, and any pain or urinary symptoms. If the colour continues despite drinking normally, arrange a medical review.

Seek urgent medical care if dark urine occurs with very little urine, fainting, confusion, severe weakness, or an inability to keep fluids down. These can be signs that fluid loss needs prompt treatment.

Get medical advice promptly for dark urine with burning when passing urine, fever, back or side pain, visible blood, pale stools, abdominal pain, or yellow skin or eyes. A clinician can check whether the cause is urinary, liver-related, or something else.

Ask whether your symptoms suggest dehydration, a urine infection, or a liver problem, and whether a urine test or blood test would help. Bring a list of medicines and supplements, and mention changes in stool colour, skin colour, fluid intake, or recent heat exposure.