A cyst is a lump that grows in your body or under your skin and contains liquid (or sometimes soft matter). It is like a closed little bag.

A cyst iscyst 是 a lump一種腫塊 that grows in your body or under your skin長在身體裡或皮膚底下的 and contains liquid裡面裝著液體 (or sometimes soft matter)（有時是軟軟的物質）。It is like它就像 a closed little bag一個封閉的小袋子。

Some cysts stay small and quiet; some become sore, large, or in the way, and a doctor may drain them or take them out. People get them in many places: just under the skin, in an ovary, in a kidney, and elsewhere.

Some cysts stay small and quiet有些囊腫會一直小小的、安安靜靜的；some become sore, large, or in the way有些則會變得疼痛、變大，或造成困擾，and a doctor may drain them or take them out醫生可能會把裡面的液體引流出來，或直接把它取出。People get them in many places長囊腫的地方很多：just under the skin, in an ovary, in a kidney, and elsewhere皮膚底下、卵巢裡、腎臟裡，還有其他地方。

In everyday English it is a doctor’s word that ordinary people also use when they have had one. It is not the same thing as cancer — though actually, the tidy line “cyst = safe, cancer = danger” is tidier than real life.

In everyday English it is a doctor's word在日常英文裡，這原本是醫生的用語，that ordinary people also use但一般人也會這樣說，when they have had one當自己長過的時候。It is not the same thing as cancer它跟癌症不是同一回事——though actually不過其實，the tidy line "cyst = safe, cancer = danger"「cyst 安全、cancer 危險」這種整齊的說法，is tidier than real life比現實生活整齊多了。

A new lump still needs a doctor’s check, because you cannot see from the outside what kind of lump it is. Cyst is the noun; doctors also say cystic as the adjective.

A new lump still needs a doctor's check新長出來的腫塊還是需要給醫生檢查，because you cannot see from the outside因為你沒辦法從外表看出 what kind of lump it is它是哪一種腫塊。Cyst is the nouncyst 是名詞；doctors also say cystic as the adjective醫生也會用 cystic 當形容詞。