How many days does it take to get the results of immunohistochemistry?

Immunohistochemistry (IHC) results are generally available within 2 to 6 weeks. The turnaround time depends on the specific markers used, the type of tissue being tested, and the particular techniques applied. The purpose of the test and the type of tissue determine the choice of antibodies and the method of signal detection, all of which influence how long it takes to obtain the final IHC results. Typically, the analysis phase takes longer than sample processing and may require several days, sometimes even 2–3 weeks or more. Additionally, non-technical factors during the experimental process—such as delays, repeated attempts, or re-optimization of technical procedures—can further prolong the time to results. Therefore, the number of days needed to obtain IHC results varies depending on the techniques used for testing and analysis, and may differ from one experiment to another.