A saliva test is a simple and non-invasive method used to collect saliva for various medical and diagnostic purposes. This test can help detect substances such as hormones, drugs, or pathogens in the body. It is often preferred for its ease of use and the comfort it provides to patients compared to blood tests. Saliva tests are commonly used in fields like dentistry for assessing oral health, in forensic science for drug testing, and in hormonal studies to measure hormone levels. The results can provide valuable insights into a person's health and help guide treatment decisions.