###Human: What are the tests available to confirm HIV? ###Assistant: Hi. As per description, you are more obsessed with HIV rather than the actual scenario. Any infection will have a remnant in the body, called the footprint of the infection. In case of HIV, the virus leaves its particles in the body, of which p24 is the core protein that protects HIV DNA. For HIV to infect human CD4 cells, it needs to break this core protein and release RNA material from the virus which passes to human cells and then further replication continues and the virus spreads through the body. So, we test for p24 particles in the body. If they are present, then you are infected and if it is not present, then you are not infected in any case (even you highly suspect or think). So, the fourth generation detects, not just these particles but also the body's response to these particles, called p24 antibodies. So, if you are negative after three months by this test, then there is no chance of being positive with the exposure. You have to accept the truth. And coming to other conditions, lipodystrophy, check for the endocrine problem which may be a cause of low testosterone. All your complaints may have undiagnosed conditions but HIV is not at all the cause. Do not be obsessive, accept the truth that you are free of infection.