What could this be urine is slightly clear with a green tinge and foam been urinating every hour now for the last six hours no burning or stinging during urination though slight struggle to wee. just the frequent urgent to go, fluid intake is normal?

Change in urine color and frequency can be the sx of lower urinary infection even without pain or burning during voiding. If you are at risk of STD, see your doctor. If no risk factor, just increase fluid intake about 50% in the next 1-2 days & observe the symptoms. If other symptoms occur or the current symptoms persist, urinalysis should be done although lower UTI is uncommon for a young man.

Your symptoms are non specific. Drink plenty of water. If it persists pl see your doc

Any time a change takes place In urination color, flow, frequency and other symptoms than a urologist should be consulted. A UTI, STD, or medications could be the cause. At your age have yourself checked even if drinking a lot of water.