Saint John’s Cancer Institute Urology and Urologic Oncology Center of Excellence treats a variety of cancers and diseases including: Prostate Cancer Cancer that occurs in the prostate, and mostly develops from gland cells. Learn More About Prostate Cancer Bladder Cancer Most often, this cancer begins in the cells on the surface of the inner lining of the bladder. Learn More About Bladder Cancer Kidney Stones These are hard deposits of minerals that are clumped together and formed in the urinary tract or kidney. Learn More About Kidney Stones Ureteral Cancer Begins in cells that line the inside of the tubes (ureters) that connect your kidneys to your bladder. Learn More About Ureteral Cancer Testicular Cancer Cancers develops in germ cells and non-germ cells of the testicle. Learn More About Testicular Cancer Urinary Obstruction Begins in cells that line the inside of the tubes (ureters) that connect your kidneys to your bladder. Learn More About Urinary Obstruction Voiding Dysfunction: Incontinence Poor coordination between the bladder muscle and the urethra. Learn More About Voiding Dysfunction Kidney Cancer Cancer forms when some kidney cells acquire mutations in their DNA. Renal cell carcinoma is the most common type of kidney cancer. Learn More About Kidney Cancer Erectile Dysfunction Treatment is based on the underlying medical issue causing the problem. Learn More About Erectile Dysfunction Benign Prostatic Hyperplasia (BPH) Enlarged Prostate Benign prostatic hyperplasia (BPH) or enlarged prostate is noncancerous condition caused by hormonal changes later in life. Learn More About BPH