My girlfriend urinates almost every 10-25 min a little not much but is very clear no pains , she know it's not a blad. infection or uti?

Urinary frequency: She should see her health provider to have a urinalysis. This will rule out a common metabolic condition, diabetes.

Here are some ...: U-frequency may suggests: excreting a lot or urine from over drinking or poor renal function; decreasing bladder functional capacity (unable to hold much urine) by UTI, OAB, IC, etc.; pending urinary retention. These can be easily sorted out by taking good Hx stressing quality, quantity, & sequence of events + physicals + tests such as UA, residual urine, blood test,... so to deduce right Dx for .