Blue or green urine looks alarming, but it is often caused by:
* Food dyes
* Certain medicines
* Medical dyes used during procedures
Some uncommon infections can also alter urine color.
If there is no obvious explanation and the change persists, medical advice is reasonable.
## Cloudy Urine
Cloudiness is not technically a color, but many people notice it.
Cloudy urine can occur because of:
* Concentrated urine
* Crystals
* Vaginal discharge
* Semen
* Urinary tract infection
When cloudy urine comes with:
* Burning during urination
* Urgency
* Frequent urination
* Pelvic pain
* Fever
a urinary infection becomes more likely.
## Foamy Urine
