Internal pudendal veins are the venae comitantes (accompanying veins lying close to the artery) of the internal pudendal artery. They begin in the deep veins of penis that start in the corpus cavernosum. Afterwards, they accompany the internal pudendal artery and unite to form a single vein, the internal pudendal vein that drains into the hypogastric vein.
Internal pudendal veins receive the following veins:
- Veins of the urethral bulb
- Perineal vein
- Inferior hemorrhoidal veins
The deep dorsal vein of the penis does communicate with the internal pudendal veins but mainly drains into the pudendal plexus.