Erection 13 no erection 8 is this good normal or not

Patient's question:

Erection 13 no erection 8 is this good normal or not

Doctor's answer:

It's perfectly normal. An erection reaching 8 cm is considered normal. So you don't need to worry.
Advice: Hello: Generally, a normal adult's penis measures 11-16 cm when erect and 7-9 cm in a natural state, with a circumference of 6.9-9.4 cm. Most men reach full development by the age of 18.