TOKYO -- The chronic health issue that again forced Shinzo Abe to resign as Japan's prime minister on Friday is ulcerative colitis, a bowel disease that afflicts an estimated 220,000 people in Japan alone.
Ulcerative colitis is treatable but has no known cure

Prime Minister Shinzo Abe arrives at a Tokyo hospital for a health check on Aug. 24. (Photo by Kento Awashima)
TOKYO -- The chronic health issue that again forced Shinzo Abe to resign as Japan's prime minister on Friday is ulcerative colitis, a bowel disease that afflicts an estimated 220,000 people in Japan alone.