Skip to navigation menu Skip to main content Skip to footer

Blog

A close-up of a person writing with a silver pen on a small spiral notebook placed on a wooden table. One hand holds the pen while the other hand points to the paper. The writing is blurred and not readable.
Diagram showing three stages of sperm: Epididymal (surface molecules shown), Ejaculated (coated with orange halos of seminal plasma proteins), and Capacitated (proteins removed, molecules exposed for fertilization).

What is Capacitation?

Capacitation, generally speaking, is the change sperm undergo in the female reproductive tract that enables them to penetrate and fertilize an egg. Learn more about this critical change in this primer.
A person wearing white medical gloves holds surgical forceps and needle holders over a white surface, preparing to perform a medical procedure with a suture thread visible.

10 Facts about Men and Vasectomy

Vasectomy and condoms are the only current options for male contraception . The most popular form of long-acting male contraception is a vasectomy . Unfortunately, vasectomies are not considered...
A person in a white lab coat and stethoscope putting on blue medical gloves, preparing for a procedure or examination. The background is softly blurred.

What is the Prostate?

The prostate is part of the male reproductive system . A walnut-sized gland located between the male bladder and the penis , the prostate sits just in front of the rectum . The urethra runs from the...
A white icon of an open hand below a sperm cell, both on a light blue background, symbolizing sperm donation or fertility assistance.

Spermatogenesis – Mechanisms of Male Contraception

The human reproductive system is a complex set of intertwining factors, many of which are required for sustained fertility. By interrupting even a single one of these required processes, we can find...
Diagram of a sperm cell labeled with its parts: acrosome, plasma membrane, nucleus, centriole, mitochondria, terminal disc, head, mid (connecting) piece, tail (with axial filament), and end piece.

Semen vs. Sperm: Roles and Responsibilities

The terms “semen” and “sperm” are sometimes incorrectly used as synonyms. While they are closely connected, they are not the same. This primer helps explain the differences between the two.
Diagram of the male reproductive system in profile view, showing labeled parts including the penis, testis, epididymis, vas deferens, seminal vesicle, prostate gland, and urethral sphincters.

What is Ejaculation?

(Image courtesy of  Wumingbai )
1 2 3 .. 7