Based on a nationwide psychological autopsy study comprising all suici
des committed in Finland during one year (n = 1397), victims who had s
uffered from cancer (n = 60) were compared with other suicides. Cancer
suicides were significantly older and more often male, which required
adjusting the control group (n = 60) for age and sex. The cancer suic
ides had more pain and were more often physically disabled. The social
network of cancer patients was stronger: 93% of them and 65% of the c
ontrol cases had a significant other. Family histories of mental disor
der were more common in the control group. Cancer was the main underly
ing factor in the suicide process in 62% of the cancer patients and a
contributing factor in 23%. Background factors of the suicide process
of the cancer patients with terminal illness (n = 18) were different f
rom those with cancer in remission and from victims among the general
population. The frequency of physical symptoms and of depression befor
e suicide in cancer patients emphasizes the need for more competent pa
lliative care and psychological support for cancer patients.