0123456789001234567890Years of Performing Robotic-assisted Surgeries
01234567890012345678900123456789001234567890 +Robotic Prostate Surgeries
012345678900123456789001234567890 +Peer-reviewed articles on prostate cancer

Innovator with
Innovations &

COVID-19 & Prostate

  • Offering COVID-safe facility and prostate cancer treatment program
  • Maintaining safe precautions and strict COVID-safe practices
  • Proactive sharing of precautions and safety measures prior to your appointment
  • Engaged in active research about COVID-19

Researcher, Innovator,
& Surgeon Scientist

  • One of the most skilled and experienced prostate cancer robotic surgeons in the world
  • Leading several critical, ongoing clinical trials
  • Pioneer in strategies for the treatment of aggressive cancer
  • One of the best nerve-sparing prostate cancer surgeons in NY for minimally invasive procedures

Our Specialty

  • Continence preservation - Minimizing disruption of urinary mechanisms
  • Nerve-sparing prostate surgery techniques
  • State-of-the-art Targeted Biopsy to precisely diagnose prostate cancer
  • HIFU - Targeted and minimally invasive approach to treat prostate cancer

International Patients

  • Patients come from across the globe for treatment from Dr. Tewari
  • Performed more than 7000 robotic prostate surgeries
  • Care for patients traveling from abroad
  • One of the best prostate cancer robotic surgeons in the U.S
  • Revolutionizing the research on Immunotherapy for prostate cancer


  • Leading researchers in Cancer Genomics and Immunology
  • Improving nerve-sparing surgery techniques
  • Advancement of ultrasound-guided biopsy techniques
  • Developing predictive models on prostate cancer survival
  • Continence preservation techniques

Holistic Healing

  • Holistic medicine, nutrition and diet, exercise and lifestyle change
  • Researching Mind-body Therapy, Immunology and Genomics to support holistic treatment
  • Man Cave Health - A destination for dialogue among men to raise awareness about prostate health

How does Prostate work?
Click on the hotspots to learn more


The prostate is a gland located directly below the bladder and above the muscles of the pelvic floor. It surrounds the urethra, the tube that carries urine and semen out of the body. The function of the prostate is to produce the fluid that nourishes and protects sperm.

Seminal vesicles

Located above the prostate, the seminal vesicles are sac-like pouches that produce and store some of the liquid portion of semen. They join with the vas deferens to form the ejaculatory ducts that pass through the prostate to the urethra.

Vas deferens

The vas deferens is a long, muscular tube that transports sperm from the epididymis into the pelvic cavity and then to the ejaculatory duct. Mature sperm are stored in the vas deferens.


The bladder is a muscular sac in the pelvis where urine is stored.

Ejaculatory ducts

The ejaculatory ducts are formed by the joining of the vas deferens and the seminal vesicles. They deliver sperm to the urethra.

Bulbourethral glands (Cowper’s glands)

The bulbourethral glands are small structures located on the sides of the urethra just below the prostate. They secrete a thin fluid into the urethra that lubricates the urethra and neutralizes the acid from urine in order to prepare the urethra for the flow of semen.


The urethra is a membranous tube that transports urine from the bladder to the exterior of the body. The urethra also has the function of expelling semen during ejaculation.


The epididymis is a long, coiled tube that rests against the back of the testes (testicles). The epididymis stores sperm cells, which are produced by the testes, and provides the environment for them to mature.


The penis is the external reproductive organ. It comprises 3 parts, the root which is attached to the pelvic bones, the shaft (main body), and the glans (tip), The shaft contains the urethra which opens at the tip to release semen or urine.

Testes (testicles)

The testes produce sperm and testosterone, the primary male sex hormone. They are contained within the scrotum, a pouch-like sac that serves to protect the testes and regulate their temperature to support normal sperm development.

Prostate Anatomy Explained

Dr. Ashutosh Tewari