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Penis

Penis

The penis serves a dual role in sexual reproduction and urination. It consists of three main regions: the glans penis, the body, and the root, each with distinct functions and unique anatomical features.
Anatomy of the Penis
The glans penis, or the head, is the terminal part of the penis and houses the external urethral orifice, the exit point for urine and semen. Covered by the prepuce, or foreskin, the glans is noted for its sensitivity and plays a key role in sexual pleasure. The body of the...

Male Sexual Response: Erection & Ejaculation

Male Sexual Response: Erection & Ejaculation

Sexual stimulation can take various forms, such as physical touch and visual or auditory cues. When this happens, the parasympathetic reflex in the sacral portion of the spinal cord is activated. This reflex stimulates the release of nitric oxide (NO), which then dilates the arterioles in the penis, increasing blood flow to the erectile tissues - the corpora cavernosa and corpus spongiosum.
The blood filling the erectile tissues compresses the veins, which helps to prevent blood from leaving...

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Related Experiment Video

Updated: Jun 16, 2026

Microscopic Electric Rotary Grinding of Plaques Combined with Graft Repair in the Management of Peyronie's Disease

Microscopic Electric Rotary Grinding of Plaques Combined with Graft Repair in the Management of Peyronie's Disease

Published on: March 15, 2024

Penile self-augmentation with Vaseline injection.

Fadhel Mansoori¹, Maryam S Ansari², Faris Najdawi³

¹Burnett School of Medicine at TCU, 1100 W Rosedale St, Fort Worth, TX, 76104, United States.

Urology Case Reports

|June 15, 2026

Summary

This summary is machine-generated.

Penile enlargement using foreign substances like Vaseline can cause serious complications. This case highlights acquired phimosis and urinary issues requiring genital reconstruction after such injections.

Area of Science:

Urology
Andrology
Plastic Surgery

Background:

Penile size is culturally linked to masculinity and power.
Self-administered penile augmentation using foreign substances carries significant health risks.

Keywords:

Paraffinoma Penile STSG Vaseline

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Complications include infection, deformity, and functional impairment.