While some are extremely painful, vertebral fractures are often asymptomatic until the spine begins to collapse.

虽然有些脊椎骨折是极其痛的，但一般的脊椎骨折直到脊椎开始崩溃之前是无症状的。

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If located on the side of common hepatic duct tumor, often asymptomatic the beginning, when the impact to the contralateral hepatic duct openings only when the emergence of obstructive jaundice.

如位于一侧肝管癌肿，开始常无症状，当影响至对侧肝管开口时，才出现阻塞性黄疸。

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Type 2 diabetes is a scourge in the Valley. Since Type 2 diabetics can be asymptomatic for years, many don’t buy medicine; as time passes, they become severely ill, often losing sight or a limb.

该地二型糖尿病也是一个痛苦，因为该病延续多年，很多人都买不起药，随着时间推移，他们病情加重，通常失明或者跛足。

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While some are extremely painful, vertebral fractures are often asymptomatic until the spine begins to collapse.

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Also, despite the use of "rupture" to describe implant failure connoting a violent break it is often asymptomatic.

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People with HIV often remain asymptomatic for years, and conventional wisdom is that treating such people brings little clinical benefit while exposing them to unpleasant side effects such as nausea, vomiting and diarrhoea.

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