27 years old. Growing up, I went to school at the age of 7, with six years in primary school, three years in junior high school and three years in senior high school. At this time, I went to college, 19 years old. If you go to college normally, you will be in college for 5 years, master for 3 years, doctor for 3 years, and graduate at the age of 30. If it is a doctor, it will be eight years, and Harvard Medical School will graduate at the age of 27. Harvard Medical School, or Harvard Medical School, is the top medical school in the world, which is famous for its superb medical technology and the least number of students admitted each year.