This study investigates multiparametric MRI (mpMRI) appearance of different types of BPH and whether quantitative mpMRI is effective in differentiating between PCa and BPH in 60 patients. mpMRI and specifically quantitative ADC values can be used for differentiating PCa and BPH, improving PCa diagnosis in the transition zone. However, DCE-MRI metrics are not effective in distinguishing PCa and BPH. In contrast to previous understanding, glandular BPH has short T2 values (hypointense on T2-weighted images), demonstrates restricted diffusion, and may have similar quantitative mpMRI measurements to stromal BPH. Additionally, glandular and cystic BPH appear differently on mpMRI and are histologically different.