What I mean is jelqing, stretching, extending, pumping, within the limits expressed on
MOS, is safe. The penis does not contain bones or any major muscle, there is very little that can damage the penis. Aside from fatigue, bruising and thrombosis I am hard pressed to find an example of someone who has received a permanent injury due to natural Penis Enlargement and the devices suggested here on
MOS. I have, however, heard of numerous permanent injuries due to penis augmentation surgeries.