Top 10 most dangerous surgeries

From separating conjoined twins to gastric bypass...

Updated: 

Sadly, there are a lot of high-risk medical surgeries. Whether it's gastric bypass or bariatric surgeries for weight loss, colectomy or bowel resection to treat illnesses like Crohn's disease or a surgery to separate conjoined twins, these are some of the most complicated medical surgeries in the world. WatchMojo counts down ten of the most high-risk operations you can undergo.

See also: Patient died after heart valve inserted upside down

See also: Man's hand sewn inside his stomach