Corpora cavernosa are chambers that run down each side of your penis that are filled with tissue that engorge with blood to give men an erection. With exercise, you can enlarge the size of these chambers to increase the length and thickness of your penis, according to the website Free Penis Enlargement Guide. The theory behind these exercises is that by stretching the chambers of your corpora cavernosa you can enlarge them to the point that they hold more blood, thereby making your erect penis larger.
Milking Technique
The penis milking technique, also known as jelqing, has been called "one of the most effective and natural male enhancement exercises," by the website MaleEnhancement.org. It should be performed when your penis is 70 to 80 percent erect. Begin this exercise by making an "okay" sign with your thumb and index finger and grab your penis at the base. Apply pressure with your fingers and pull your hand down the length of your shaft, stopping at the head of your penis. As you reach the head with one hand, encircle your penis with the other hand using the same grip and continue. Each stroke should take about three seconds to complete. You should begin with about 100 strokes and work up to 500 repetitions.
Penis Stretching, Flaccid
This technique is performed exactly like it sounds, by grasping your penis and stretching it in various directions. These stretches are designed to be used on a flaccid penis in order to stretch the muscles and tissues that make up your penis. Grasp your penis by the head while it is flaccid and stretch it to the right, left, up, down and straight out. Hold each stretch for 30 seconds and repeat. This exercise is designed to increase the length of your corpora cavernosa, allowing more blood to fill the chambers and increasing the length of your penis.
Penis Stretching, Erect
While erect, grab your penis around the shaft and push it down as far as it will go. Hold this stretch for several seconds and release. Now pull it down as far as possible using a hard pulling motion and release it. Repeat 20 times. Once again pull it down and hold it for 30 seconds. Repeat this cycle while pulling your penis to the right, left and up.
Ballooning
The ballooning technique is one of the least satisfying corpora cavernosa exercises, since it requires you to hold back your ejaculate. Begin by massing your penis through masturbation and as you come to the point of ejaculation, place one of your hands firmly over the head of your penis to stop your ejaculation. Practice this until you can stop yourself from ejaculating three to five times to stimulate the growth of your corpora cavernosa.


