HIV is self-testable. At present, there are two main types of reagents for self-testing, one is the blood, mainly by stopping the blood for testing. You can easily buy this kind of blood test reagent on the Internet, and after you get it back, you can use the needle, after sterilizing it, stick your finger and put the blood drop on it, and the report will be ready in about 20 minutes. There is another way to test through saliva, the exact name is oral mucosal exudate. This kind of reagent can also be bought online, or there are some medical institutions will also have such reagents, which are a rapid test reagents. Compared with the previous reagent, it is basically non-invasive or painless, just brush the gum area, insert the oral mucosal exudate into the tube, and then about 20 minutes later, the report can also be issued. Both of these are relatively convenient, and this is the more readily available reagent for self-testing.