These may account for only one-seventh of all the mentally ill, but because the cause of illness is unclear, no radical treatment is available. This fact, combined with many misunderstandings about these illnesses, puts great pressure on the patients and their families.
雖然其人數大約只有精神疾病總人數的七十分之一，但由於病因未明，無根治辦法；加上社會大眾對非心理因素精神病的種種誤解，使得病患及家屬遭遇強大的壓力。