Chu was diagnosed with
stage II colorectal cancer in 2014. He feared the
adverse effects that came along with the cancer treatment especially the installation of
colostomy, leading him to delaying to have intensive treatments until September 2016 when he had severe
ascites and poor health status where he were left no choice. (It's reported that Chu had tried many other regimens and unknown treatments both are not proven to be effective instead of the surgery and
chemotherapy which are proven to be effective in treating cancer.) Whereas, even though he finally returned to the hospital to accept surgery of removal of the
malignant tumor, his cancer had advanced to the
final stage, which had metastasized to his other organs, including his
lungs and
liver. When interviewed subsequent to the surgery, he said "I should have believed in
evidence-based medicine two years ago." Having terminal
colorectal cancer for three years, Chu died in the
National Taiwan University Hospital on 15 May 2017 due to
liver failure. He was 70. A private memorial was held on 16 May. A public funeral attended by 2,000 people took place in
Banqiao on 20 June. ==Image and influence==