University Urology, PC · Knoxville, Tennessee
John M. Lacy, MD
Reconstructive Urology / General Urology
The region’s only fellowship-trained male reconstructive urologist. Urethral stricture, penile prosthesis, AUS, and cancer survivorship.
“My focus is on restoring function and quality of life for men affected by urethral disease, incontinence, and erectile dysfunction — conditions that are often undertreated but very amenable to surgical correction.”— John M. Lacy, MD
About Dr. Lacy
Father of three. Avid sports fan. Foodie traveler.
Dr. Lacy was raised in Clarkesville, Georgia, and received his undergraduate degree from Wake Forest University. He earned his medical degree from the Medical University of South Carolina in Charleston, South Carolina. He completed his surgical internship and urology residency at the University of Kentucky in Lexington.
Following residency, Dr. Lacy completed a clinical fellowship in Male Genitourinary Reconstruction and Prosthetics at the Cleveland Clinic in Cleveland, Ohio — one of the most respected programs in the country for male reconstructive urology. He is the only fellowship-trained male reconstructive urologist in East Tennessee.
Dr. Lacy’s practice focuses on restoring quality of life for men affected by urethral disease, stress urinary incontinence, erectile dysfunction, and Peyronie’s disease — conditions that are frequently undertreated despite effective surgical solutions being available.
Clinical Focus
Subspecialty Focus
East Tennessee’s Only Fellowship-Trained Male Reconstructive Urologist
Male reconstructive urology addresses the structural and functional consequences of disease, injury, and cancer treatment. Dr. Lacy’s Cleveland Clinic fellowship training gives him expertise in surgical solutions that most urologists do not perform.
Urethral Stricture & Urethroplasty
Urethral stricture disease causes progressive urinary obstruction and significantly impacts quality of life. Dr. Lacy performs the full spectrum of urethroplasty techniques — anastomotic, buccal mucosal graft, and flap repairs — tailored to stricture length, location, and etiology. All urethroplasty cases regardless of geography are performed by Dr. Lacy.
Artificial Urinary Sphincter (AUS)
The gold-standard surgical treatment for male stress urinary incontinence, particularly after prostatectomy. Dr. Lacy is the only surgeon at University Urology performing AUS implantation. High satisfaction rates in appropriately selected patients, including those with prior radiation therapy.
Inflatable Penile Prosthesis (IPP)
Definitive surgical treatment for medication-resistant erectile dysfunction. Dr. Lacy is the primary IPP surgeon at University Urology, performing both 3-piece inflatable and malleable device implantation. Candidates include post-prostatectomy ED, severe vascular disease, and men with both Peyronie’s and ED.
Peyronie’s Disease & Xiaflex
Peyronie’s disease causes penile curvature, pain, and erectile dysfunction from scar tissue formation. Dr. Lacy offers Xiaflex injections (FDA-approved injectable treatment), plication procedures, and combined IPP with intraoperative straightening for men with both curvature and severe ED.
Video Profile
Meet Dr. Lacy
Dr. Lacy discusses his approach to male reconstructive urology, penile implant surgery, and what patients can expect when seeking care for urethral stricture, incontinence, or erectile dysfunction.
Related Services
Conditions & Procedures Dr. Lacy Treats
Explore the dedicated service pages for the areas Dr. Lacy specializes in.
Schedule With Dr. Lacy
Call us, text, or message through Klara. Dr. Lacy sees patients at UTMC, Lenoir City, and Crossville.