If you think that your penis is too small, be sure to measure it accurately. Even if it is shorter than average, it's important to place the size of your penis in context and ask yourself why it is causing you such distress. It sometimes helps to speak with a psychologist who can help you sort through your feelings and provide the perspective you need.
A small penis isn’t more sensitive than a larger one, but surprisingly there is some correlation, many men with a relatively small penis report that they ejaculate prematurely. From the purely medical point of view, this could be conincidence, but not from the psychological. No matter how important or unimportant penis size is for the female partner, men with a smaller penis often feel unsecure, at least subconsciously. Insecurity leads to stress and bodily tension, which encourages coming too fast. This subjective failure causes even more stress the next time, a cycle that’s hard to break. That’s the main reason why penis enlargement often assists in lasting longer in bed, too.
The vacuum pump. This is a cylinder that sucks out air. You stick your penis in and the resulting vacuum draws extra blood into it, making it erect and a little bigger. You then clamp off the penis with a tight ring -- like a tourniquet -- to keep the blood from leaking back into your body. What are the drawbacks? The effect only lasts as long as you have the ring on. Using it for more than 20 to 30 minutes can cause tissue damage. This is sometimes used as a treatment for erectile dysfunction, but has not been proven to actually increase the size of the penis.