Penis size: What's normal, what's not?

The fear that your penis looks too small or is too small to satisfy your partner during sex is common. But most men who think their penises are too small actually have penises that are considered typical size.

Many men also have an exaggerated idea of what is considered a "typical" penis size.

The length of a non-erect penis doesn't consistently predict length when the penis is erect. If your penis is about 5 inches (13 cm) or longer when erect, it's of typical size.

A penis is considered small only if it measures less than 3 inches (about 7.5 centimeters) when erect. This is a condition called micropenis.