Patients frequently complain of discoloured urine. The table below lists common causes of urine discolouration that are often seen in practice.
Table 2: Causes of discoloured urine
| Colour | Cause |
| Dark Yellow | - Drugs: chloroquine and sulphonamides
- Bilirubin
- Foods: carrots, riboflavin, vitamin A
|
| Orange | - Drugs: phenolphthalein laxatives, rifampicin sulfasalazine
|
| Blue Green | - Pseudomonas
- Drugs: amitriptyline, NSAIDS, promethazine
|
| Red Brown | - Sorbitol
- Porphyria
- Foods: rhubarb, fava beans
|
| Red | - Drugs: rifampicin, phenothiazines
- Foods: beetroot and blackberries
- Haemoglobinuria
- Myoglobinuria
|
