Phage therapy is a treatment that uses bacteriophages, which are viruses that specifically target and kill bacteria. This method is being explored as an alternative to antibiotics, especially for infections caused by antibiotic-resistant bacteria. Phages can be isolated from various environments, such as soil or water, and are chosen based on their ability to infect specific bacterial strains. The therapy involves administering these phages to patients, where they attach to and destroy harmful bacteria. Phage therapy has shown promise in treating conditions like chronic wounds, cystic fibrosis, and certain bacterial infections. Researchers continue to study its effectiveness and safety in clinical settings.