Palliative care provides symptom relief and support at any stage of a serious illness, alongside curative treatments, while hospice care is for patients with a life expectancy of six months or less, focusing solely on comfort. Patients choose palliative care when they want relief while continuing treatment, and hospice when curative care is no longer the goal. Both can be used at different stages. Palliative care is open to anyone with serious illness, aiming to improve quality of life, whereas hospice emphasizes end-of-life comfort and family support.