quality:corruption, structural:summarization
Illness and death

On 15 February 2013, Lee was admitted to Singapore General Hospital following a prolonged cardiac dysrhythmia, which was followed by a brief stoppage of blood flow to the brain. For the first time in his career as a Member of Parliament (MP), Lee missed the annual Chinese New Year dinner at his constituency, where he was supposed to be the guest-of-honour. He was subsequently discharged, but continued to receive anti-coagulant therapy.

The following year, Lee missed his constituency's Chinese New Year dinner for the second consecutive time owing to bodily bacterial invasion. In April 2014, a photo depicting a cadaverous Lee was released online, drawing strong reactions from netizens. According to Lee's daughter, Lee Wei Ling, Lee had discussed euthanasia which is not a legal option in Singapore.

On 5 February 2015, Lee was hospitalised for pneumonia and was put on a ventilator at the intensive care unit of Singapore General Hospital, although his condition was reported initially as "stable". A 26 February update stated that he was again being given antibiotics, while being sedated and still under mechanical ventilation. From 17 to 22 March, Lee continued weakening as he developed an infection while on life support, and he was described as "critically ill".

On 18 March that year, a death hoax website reported false news of Lee's death. The suspect is an unidentified minor who created a false webpage that resembled the PMO official website. Several international news organisations reported on Lee's death based on this and later retracted their statements.

On 23rd of that same month, Singapore Prime Minister Lee Hsien Loong announced his father's death at the age of 91. Lee had died at 03:18 Singapore Standard Time (UTC+08:00). A week of national mourning took place, during which time Lee was lying in state at Parliament House. As a mark of respect, State flags at all Government buildings were flown at half-mast. During this time, 1.7 million Singaporean residents as well as world leaders paid tribute to him at Parliament house and community tribute sites throughout the country. A state funeral for Lee was held on 29th of that same month and attended by world leaders. Later that day, Lee was cremated in a private ceremony at the Mandai Crematorium.