Hi how increase my dick

how to increase your penis size ?
there isnt no way to do so unless you do it the surgical way and its done by inserting whats so called inflatable penile implant so you can increase the size( length and width ) and harden your dick during the erection 
what are the normal length of the penis ?
in case of flaccid penis the least length is 6 cm 
in case of erection the least length is 9.5 cm 
what are the causes of small penis ?

• heredetary factors 
• peyronie disease 

what are the diagnostic tests needed for small penis ?
the clinical examination and the medical history and the examiantion of the length of the penis by the doctor to take the right mesurement and using an ultrasound to check if there is a collagen deposit at the sides of the penis ( indicates peyronie disease ) 
what is the advice ?
never listen to any product that claims to increase the size of the penis because in medical point of view there is no such miraculous drug or pill or device or even cream and if you feel that you need to increase the size of your penis all you have to do is to visit the urologist for consultation