Bypass surgery is a surgical procedure that aims to open the blockage in the heart that obstructs the blood in the heart vessels. The surgery depends on taking healthy blood vessels from the leg and, arm or chest and replace them in the blocked area in the heart to get them flowing back normal again. Bypass surgery will not heal the heart disease, it will only fix the blockage, not the cause. It will get the heart back to normal functions and heal the symptoms like hard breathing, pain, and of course the risk of dying by heart disease. Bypass surgery is considered a very necessary and urgent procedure for those who have the disorder, they carry a high risk of dying each day of delay. The surgery carries a high success rate around the world in terms of healing the disorder and staying symptoms-free however Bypass surgery is open-heart surgery, it carries some risks so it needs a specialist.