The placebo effect is a phenomenon in which a patient experiences a beneficial outcome or improvement in symptoms after receiving a placebo treatment, which is an inactive substance or procedure that is not expected to have any therapeutic effect. This effect is believed to be the result of the patient's belief in the treatment and the power of the mind to influence physical health. Research in this area explores the mechanisms underlying the placebo effect, the factors that influence its effectiveness, and its potential applications in healthcare. Additionally, studies investigate how the placebo effect can be harnessed to enhance the effectiveness of conventional treatments and improve patient outcomes.