The Gräfenberg spot, or G-spot, is a small area in the genital area of women behind the pubic bone and surrounding the urethra.

When this spot, located inside the vaginal wall, is stroked, there is a sensation or urge to urinate, but if the stroking is continued during sexual arousal it can be sexually pleasurable.

For some women, it can be a primary source of stimulation leading to orgasm during intercourse while having sex in positions that use the penis to stimulate the frontal wall of the vagina. In such positions, it is usually the angle of penetration, so that the penis makes direct contact with the front of the vaginal wall, that induces this stimulation. Because of its hard to reach location and its role in sexual stimulation, some people employ g-spot vibrators for better stimulation.

It was once believed to be a bundle of nerves in or around the vaginal walls but is now reported to be the same as, or part of, the urethral sponge (Heath, 1984), the site of Skene's glands, a homologue of the prostate that exists in many women believed to be the source of female ejaculation.

It is located on the anterior or frontal, side of the vagina, about half way between the pubic bone and cervix.

The G-spot may not be just one discrete spot. Some have contended that it is merely the deep nerves of the clitoris as they pass through the tissue to connect with the spinal column. The clitoris has deep roots and may in fact change in size and slightly change in location as hormone levels fluctuate throughout a woman's life.