Kefir grains, a symbiotic culture of bacteria and yeasts. Traditional kefir is fermented at ambient temperatures, generally overnight. Fermentation of the lactose yields a sour, carbonated, slightly alcoholic beverage, with a consistency and taste similar to thin yogurt.
Aim: glans expansion. technique: urethral dilatation. I purchased a set of urethral sounds made from surgical quality stainless steel, with the following dimensions: 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38 F (1 F = 3 mm). I have been training for months approximately 1 hour once a week with sounds of successive dimensions and am now able to insert the biggest sound.
Gross anatomy. The male urethra measures, on average, 18-20 cm in length. It commences at the internal urethral orifice in the trigone of the bladder and opens in the navicular fossa of the glans penis at the external urethral meatus, which is the narrowest part of the urethra. The male urethra can be divided into anterior and posterior portions.