Bacteriophage therapy, also known as phage therapy, is a potential alternative to traditional antibiotics for treating bacterial infections. It involves using bacteriophages, which are viruses that specifically target and infect bacteria, to kill harmful bacteria in the body. Phages are abundant in the environment and easily isolated and purified for therapy. The concept of bacteriophage therapy has been around for over a century, but interest in its use has been growing in recent years due to the rise of antibiotic-resistant bacteria. Research in this area aims to develop specific phage cocktails that can effectively target and eliminate pathogenic bacteria while minimizing harm to beneficial bacteria in the body. Clinical trials are currently underway to evaluate the effectiveness and safety of bacteriophage therapy for various infections, including skin infections, respiratory infections, and gastrointestinal infections. If successful, bacteriophage therapy has the potential to revolutionize treatment for bacterial infections and combat antibiotic resistance.