There were 1063 acute burn patients admitted to the Burns Unit of Prince of Wales Hospital, Hong Kong, between March 1993 and February 1999. Eleven patients (1%) were burned due to attempted suicide. Seven were males and four were females, with a male:female ratio of 1.75:1. The median age was 38 years (range: 20-49 years) and the median extent of the burns was 55% total body surface area (range: 1-95%). Ten patients (90.9%) were self-incinerated and one patient attempted suicide by jumping into a hot bath. Seven patients (63.6%) suffered from severe smoke inhalation injury that required immediate intubation for ventilatory support. The average number of operations for the survivors was 3.7 (range: 0-8) and their median hospital stay was 42 days (range: 2-92 days). Four patients (36.4%) died from their injuries. Suicidal burns were more common among unemployed males with a history of psychiatric illness and substance abuse. Town gas (naphtha: a mixture of 49% hydrogen, 28.5% methane, 19.5% carbon dioxide and 3.0% carbon monoxide) was the most frequently used agent for self-immolation because it is probably the most convenient source of a fire accelerant in Hong Kong. Compared to the general burn population, this suicide group had a larger extent of burns, higher incidence of inhalation injury, required more operative treatment and longer hospital stay with a higher mortality rate.