Thanks for your query.Based on the facts that you have posted it appears that you have plenty of pus cells detected on your semen analysis
This is mostly due infection of either Seminal Vesicle
Please consult qualified Urologist
for clincal and digital rectal examination
and further treatment.
Get culture of your semen done to find outthe organisms causing this infection and antibiotics to which they are sensitive to.
Take antibiotic as per culture report and after discussing with your family Physician.