It is common to experience swelling, pain and redness in the days following penis enlargement surgery. Other risks and side effects include:
Developing a bend or kink in the penis
Scarring
Infection
Erectile dysfunction
Loss of sensation in the penis
Needing further surgery which may leave the penis shorter
General complications from any type of surgery include pain, scarring, blood clots (deep vein thrombosis) and an adverse reaction to the anaesthetic.