HIV cd4 cells having 300 per cubic millimeter or more is not normal. HIV infected person CD4 cell count of 300 per cubic millimeter or more is on the low side, normal adult CD4 cell count 500 to 1600 per cubic millimeter. When HIV infects the human body, it destroys the infected person’s CD4 cells, resulting in a significant drop in their count. The lower the CD4 cell count, the more severely the infected person’s immune system is compromised. Therefore, a CD4 cell count of 300 per cubic millimeter or more is not normal in HIV-infected patients. A CD4 cell count above 300 per cubic millimeter indicates that the immune system has been damaged, and may not be able to resist the invasion of pathogens from the outside world, making it easy to be infected with some diseases and posing a certain threat to the health of the body. After infected with AIDS, you should take medication in time, test your CD4 regularly, monitor the rebuilding of your immune system, and take measures to improve your immunity in order to prevent greater danger.