Doctors of Chiropractic are well-educated. The average Chiropractor has a four year B.S. (Bachelor of Science) degree and a four year D.C (Doctor of Chiropractic) degree. Chiropractic education and medical education are similar in many respects and different in others because chiropractors do not prescribe drugs or perform surgery, and medical doctors do not adjust the spine or correct vertebral subluxations. After graduating with a Doctor of Chiropractic (D.C.) degree, each candidate passes the demanding four part National Board Examinations. Then, doctors apply to a governmental or professional licensing board and pass a still more difficult test before being granted the privilege to practice. A chiropractor’s education, however, never ends. Most doctors complete regular postgraduate instruction for license renewal and to stay current on the latest research and adjustment techniques.