HIV检查结果为阴性意味着什么？

HIV检查结果为阴性意味着什么？

HIV检查结果为阴性并不一定意味着你没有HIV。这是因为存在一个窗口期——即从感染HIV到测试能够准确检测出HIV的这段时间。窗口期因人而异，并且根据不同类型的HIV检测，窗口期的时间也会有所不同。（你可以参考“接触HIV后多久能通过HIV检测确认自己是否感染？”）

你可以向医生咨询你所接受的检测的窗口期。如果你使用的是家庭自测工具，你也可以在检测包内的说明资料中找到窗口期的信息。如果在可能接触HIV后的3个月内进行HIV检测且结果为阴性，那么建议再在3个月后再次检测，以确保结果准确。

如果你上一次检测得知自己为HIV阴性，你只能在没有发生过新的HIV暴露的情况下，确定自己依然是阴性。如果你有性生活，继续采取预防HIV的措施非常重要，例如每次性交时正确使用避孕套，并在高风险情况下服用预防HIV的药物。学习如何正确使用避孕套。

What Does a Negative HIV Test Result Mean?

A negative result doesn’t necessarily mean that you don’t have HIV. This is because of the window period—the time between when a person gets HIV and when a test can accurately detect it. The window period varies from person to person and depends on the type of HIV test used. (See "How soon after an exposure to HIV can an HIV test detect if I am infected?")

Ask your healthcare provider about the window period for the test you’re taking. If you’re using a home test, you can find that information in the materials included with the test kit. If you get an HIV test within 3 months after a potential HIV exposure and the result is negative, get tested again in 3 more months to be sure.

If you learned you were HIV-negative the last time you were tested, you can only be sure you’re still negative if you haven’t had a potential HIV exposure since your last test. If you are sexually active, continue taking actions to prevent HIV, such as using condoms correctly every time you have sex and taking medicines to prevent HIV if you are at high risk. Learn the right way to use a male condom.