Get one urine culture and sensitivity done. Most of the time it is infection. Sometimes it is with out the infection, excretion of WBC.
Next Steps
Take plenty of water orally (10 to 12) glasses daily. 1 teaspoon of dry cranberry fruits. If cultures are positive for bacteria consider antibiotics as per your local doctor as per safety profile.
Health Tips
Keep your Perineal area clean and dry. Avoid physical intimacy.