Dark urine causes and what they can mean

Amber urine often reflects concentrated urine after reduced intake, sweating, fever, or vomiting. Food, supplements, and medicines can add colour. Pink, red, or brown urine may contain blood from the urinary tract, although vaginal bleeding can look similar. Cloudiness, burning, frequent urination, lower abdominal discomfort, or an unusual smell can point toward urinary irritation or infection.

Tea-coloured urine with yellow skin or eyes, pale stools, itching, nausea, or unusual tiredness can accompany liver or bile-flow problems. Dark urine with significant muscle pain or weakness can reflect muscle pigment after injury or strenuous activity. These patterns overlap, so colour alone cannot identify the cause.

Look at a fresh urine sample in clear light and note whether it is amber, red, brown, cloudy, or tea-coloured. Record recent fluids, sweating, illness, exercise, food, medicines, supplements, bleeding, and other symptoms. Drink normally if you have no fluid restriction. Seek a medical review when the cause is unclear, the colour returns, or it does not settle; testing can distinguish blood, infection, liver changes, and other sources.

Get urgent help for inability to pass urine, heavy blood or clots, severe side or back pain, fainting, confusion, repeated vomiting, or severe muscle pain and weakness with tea-coloured urine. Arrange prompt assessment for fever, yellowing of the skin or eyes, pale stools, or persistent unexplained dark urine. Do not wait for symptoms to become severe when a warning sign is present.

Ask which features make urine testing, blood tests, or imaging appropriate, and whether a medicine, supplement, recent illness, exercise, or bleeding could explain the change. Tell the clinician when it began and whether the shade changes after regular fluid intake.