The length and thickness of a penis during sexual desire depends on the power of the uplift center. Whenever sexual desire rises in the brain, the cerebrum starts work and orders the uplift center to send blood inside the spongiosum tissue. If the uplift center is powerful then the penis will also be able to hold the blood in more quantity and its thickness and height depends on the quantity of the blood it holds. The youths going to the way of impotent found their uplift center have a weak penis and uplift center. In those youths, the uplift center affects badly and it becomes unable to hold the blood and the penis doesn’t get the natural shape and size. The size and thickness of penis decrease with the rise of weakness in the uplift center. If the shape and size of the penis are less than the actual size and shape then it clears that the uplift center is affected badly. If the weakness will increase then a stage will come when the uplift center can’t hold the blood and the penis will not uplift even on sexual desire. This is known as impotent. So, always take an immediate treatment if you are experiencing the same issue before the condition becomes worst.