Lumbago is pain in the lower back, the part just above the hips. It names the ache, not one special disease with a single cause: a pulled muscle, a day of heavy lifting, or wear in the spine can all bring it on.

Lumbagolumbago is pain in the lower back是下背部的疼痛，the part just above the hips也就是髖部正上方那個位置。It names the ache它指的是那種痠痛本身，not one special disease with a single cause而不是某一種有單一原因的特定疾病——a pulled muscle, a day of heavy lifting, or wear in the spine拉傷的肌肉、搬重物搬了一整天，或脊椎的磨損，can all bring it on都可能引起它。

The word is rather old-fashioned and medical; doctors used it a great deal in the past, and you still meet it on forms and with older speakers. In ordinary talk today, most people just say lower back pain or I’ve hurt my back.

The word is rather old-fashioned and medical這個字相當老派、偏醫學用語——doctors used it a great deal in the past醫生以前很常用它，and you still meet it on forms and with older speakers你現在還會在表格上，或長輩口中遇到它。In ordinary talk today現在的日常對話裡，most people just say lower back pain or I've hurt my back大家大多直接說lower back pain或I've hurt my back。

It is not slang, and it is not a joke-word in the way bad back can be. A verb to lumbago was later made from the noun, but almost nobody uses it in real conversation.

It is not slang它不是俚語，and it is not a joke-word in the way bad back can be也不像bad back那樣可以拿來開玩笑。A verb to lumbago was later made from the noun後來有人從這個名詞造出動詞to lumbago，but almost nobody uses it in real conversation但實際對話裡幾乎沒有人會用。