We’ve all heard about the “g-spot” — the female erogenous zone that some claim can induce intense pleasure. But what even is it?

Ancient texts from thousands of years ago describe a mysterious area that when stimulated would produce euphoric pleasure and trigger female ejaculation. That area was first described in Indian texts dating back to the third century, and is now referred to as the “G-spot” by frat boys in locker rooms.

The G-spot was officially “discovered” by Dr. Ernst Gräfenberg, an eye doctor turned gynecologist, who spent his life studying the female sexual anatomy. While he was studying urethral stimulation, he first discovered a spot a few inches inside the vagina that could be stimulated and cause a new kind of orgasm. In his most famous paper “The Role of Urethra in Female Orgasm” he talked about an erotic zone on the anterior wall of the vagina that could be stimulated for pleasure. This became named as the Gräfenberg Spot, or G-spot.

However, the science behind this mystical pleasure zone is a little murky. For instance, many researchers began doing biopsies of vaginal tissue in hopes of finding the sweet spot, only to wind up empty handed. Other research has found that women who have vaginal orgasms also have thicker tissue in areas near where the G-spot is supposed to reside. All of this research emerged as part of a study done by Amichai Kilchevsky, a Yale-New Haven hospital urology resident titled Is the Female G-Spot Truly a Distinct Anatomic Entity? published in the Journal of Sexual Medicine.

“Without a doubt, a discreet anatomic entity called the G-spot does not exist,” said Dr. Amichai Kilchevsky, a Yale-New Haven hospital urology resident in a Huffington Post article from 2012. So if the G-spot is not an anatomical entity, does it even exist?

The answer is yes, at least in some women. According to Molly Edmonds of HowStuffWorks publication, G-spot orgasms are physiologically different than clitoral or vaginal orgasms. During sex, women can excrete urine, but in a G-spot orgasm, women release a diluted form of urine and female ejaculate. This mixture is called squirting,  colloquially. What is even more telling is in the liquids themselves. Female ejaculate is very similar chemically and visually to the same substances produced by a man’s prostate.

This leads researchers like Kilchevsky to conclude the G-spot is more than just a bundle of nerve cells. Instead, pressing on this region in the vagina actually stimulates a gland called Skene’s gland, which is similar to the male prostate. The milky white female ejaculate, which is chemically similar to the male prostate excretions, prove this.

So yes, the G-spot does exist to some extent. Although there is a push to rename it to the G-region. Not every woman finds the G-spot stimulation to be enjoyable, however. Just like some women can only achieve clitoral orgasms, or just vaginal orgasms, some women cannot receive G-spot orgasms. However, if you are looking to push a woman’s buttons, this is one you definitely want to push.