Do patients who undergo gynecomastia insision surgery in england get put under?

Sometimes: Gynecomastia surgery can be performed with local, "twilight" or general anesthesia. Sometimes this depends on the amount of tissue to be removed. You should discuss this with your surgeon.

Usually: Depending on the severity of the case, gynecomastia surgery can be performed under local anesthesia, IV sedation or "twilight sleep" , or general anesthesia, regardless of where you are in the world.

Varies...: The exact type of surgery and anesthesia used will likely vary from one practitioner to another. Therefore, for accurate information, best to address this question to your chosen surgeon. Best wishes.