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Urological Conditions & Treatments

Dr. Nikolaos Mertziotis, Urologist-Andrologist. PhD University of Athens. Head of Reconstructive Urology & Surgical Andrology, Metropolitan Hospital.

Focal Therapy

An innovative minimally invasive treatment for localized prostate cancer and small kidney tumors — using the MRI-Fusion technique and diode laser ablation to destroy tumors precisely, without incision, under local anesthesia.

Urologist Nikolaos Mertziotis

Prostate Cancer

A complete guide to prostate cancer: what it is, symptoms, risk factors, diagnosis, Gleason score, PSA, treatment options including focal therapy, robotic surgery, radiation, and brachytherapy.

Urologist Nikolaos Mertziotis

Kidney Stones (Nephrolithiasis)

What kidney stones are, the types, causes, symptoms and all modern treatment options — from lifestyle changes and medication to ESWL lithotripsy and endoscopic surgery.

Urologist Nikolaos Mertziotis

Urinary Tract Infections (UTI)

Causes, risk factors, diagnosis and treatment of UTIs — from uncomplicated cystitis and pyelonephritis to recurrent infections and the latest prevention strategies including vaccines.

Urologist Nikolaos Mertziotis

Varicocele

What varicocele is, how it affects male fertility, complications, and what to expect from your doctor — physical examination, colour scrotal ultrasound and available treatments.

Urologist Nikolaos Mertziotis

Sexual Dysfunction

Erectile dysfunction: causes, prevalence, treatment options including oral medications and penile prosthesis placement — a permanent solution with 90% patient satisfaction.

Urologist Nikolaos Mertziotis

Robotic Surgery

Robotic surgery with the da Vinci Xi system: what it is, how it works, and the benefits it offers — smaller incisions, minimal scarring and faster recovery — compared to conventional open surgery.

Urologist Nikolaos Mertziotis

Hematuria (Blood in Urine)

What hematuria is, its types (gross and microscopic), causes, risk factors, symptoms and how it is diagnosed and treated — from urinalysis to cystoscopy and MRI.

Urologist Nikolaos Mertziotis

Bladder Cancer

10 questions and answers about bladder cancer — hematuria as the key symptom, causes, diagnosis, staging (superficial, infiltrative, metastatic) and treatment including transurethral resection and radical cystectomy.

Urologist Nikolaos Mertziotis

Phimosis

What phimosis is, at what age it occurs, what problems it causes and when and how it is treated — including circumcision under local anesthesia and the distinction from short frenulum.

Urologist Nikolaos Mertziotis

Penis Enlargement (Phalloplasty)

Dr. Mertziotis's innovative no-visible-incision technique (published 2013), 15 Q&A on length and diameter increase, permanence of results, non-surgical methods and risks.

Urologist Nikolaos Mertziotis

Urinary Incontinence

What urinary incontinence is, who it affects, its five types (stress, urge, mixed, reflex, overfilling), causes, and all treatments — from behavioral therapy and medication to the artificial sphincter and urethral support tape.

Urologist Nikolaos Mertziotis

Benign Prostatic Hyperplasia (BPH)

What the prostate is, symptoms of enlargement (frequency, nocturia, urgency, urinary retention), diagnosis with digital rectal exam, ultrasound and uroflowmetry, and all treatment options including transurethral prostatectomy and bipolar diathermy.

Urologist Nikolaos Mertziotis

Male Infertility

Incidence, causes (including varicocele — responsible for 40% of cases), diagnosis and spermiogram, testicular biopsies (TESE, percutaneous, microTESE), surgical treatment and lifestyle advice to improve reproductive ability.

Urologist Nikolaos Mertziotis

Urethral Stenosis (Stricture)

What urethral stricture is, causes (trauma, infection, congenital), symptoms, complications, diagnosis with uroflowmetry and urethrography, and treatment — from endoscopic urethrotomy to anastomotic urethroplasty with success rates up to 100%.

Urologist Nikolaos Mertziotis