Penis enlargement surgery can increase flaccid length by approximately 1–2 inches. Erect length increase is usually minimal.
Girth enhancement provides more visible changes and can be achieved surgically or non-surgically. Outcomes vary depending on anatomy and technique, however most patients achieve around one inch thicker, flaccid and on erection.
Learn about recovery and safety:
https://knowledgebase.moorgateandrology.co.uk/how-to-prepare-for-penis-enlargement-surgery