Benjamin Franklin took a great interest in health-related topics by applying Enlightenment reasoning to his study of various afflictions and came up with some astonishingly accurate hypotheses. Benjamin Franklin insights and productivity was in medicine where he saw the value in vaccination against smallpox and was aware of the placebo effect. He launched the first American medical school and devised a flexible urethral catheter. He also identified lead poisoning as a cause of abdominal pain and peripheral neuropathy. He further accurately described psoriasis well before Robert Willan. These contributions by Benjamin Franklin in healthcare may be said to be significant and satisfactory.