Silver nanoparticles (AgNPs) are nanoscale particles of silver with sizes between 1 and 100 nm. They possess unique properties that make them useful in molecular diagnostics, therapies, and medical devices. AgNPs are synthesized through physical, chemical, and biological methods. While chemical and physical methods are costly and may involve toxic substances, biological methods using bacteria, fungi, and plant extracts offer a more feasible and eco-friendly alternative. AgNPs have various applications in medicine, including antimicrobial and anti-inflammatory uses, as well as in wound dressings, bone cements, and surgical meshes. Their antimicrobial properties are primarily due to their ability to disrupt microbial cell membranes, generate reactive oxygen species, and inhibit essential cellular processes. However, AgNPs also pose potential health and environmental risks due to their nanotoxicity, which includes toxicity to humans and the environment. Studies suggest that AgNPs can cause oxidative stress, mitochondrial dysfunction, and damage to cellular structures. Additionally, AgNPs may disrupt ecological systems by affecting beneficial bacteria and aquatic life. Despite their benefits, the long-term effects of AgNPs on human health and the environment are not fully understood, and further research is needed to assess their safety. The review highlights the importance of developing efficient and safe synthesis methods for AgNPs while considering their potential toxicity. The medical applications of AgNPs are extensive, but their use must be carefully managed to minimize adverse effects. Overall, AgNPs have significant potential in medicine, but their environmental and health impacts require further investigation.Silver nanoparticles (AgNPs) are nanoscale particles of silver with sizes between 1 and 100 nm. They possess unique properties that make them useful in molecular diagnostics, therapies, and medical devices. AgNPs are synthesized through physical, chemical, and biological methods. While chemical and physical methods are costly and may involve toxic substances, biological methods using bacteria, fungi, and plant extracts offer a more feasible and eco-friendly alternative. AgNPs have various applications in medicine, including antimicrobial and anti-inflammatory uses, as well as in wound dressings, bone cements, and surgical meshes. Their antimicrobial properties are primarily due to their ability to disrupt microbial cell membranes, generate reactive oxygen species, and inhibit essential cellular processes. However, AgNPs also pose potential health and environmental risks due to their nanotoxicity, which includes toxicity to humans and the environment. Studies suggest that AgNPs can cause oxidative stress, mitochondrial dysfunction, and damage to cellular structures. Additionally, AgNPs may disrupt ecological systems by affecting beneficial bacteria and aquatic life. Despite their benefits, the long-term effects of AgNPs on human health and the environment are not fully understood, and further research is needed to assess their safety. The review highlights the importance of developing efficient and safe synthesis methods for AgNPs while considering their potential toxicity. The medical applications of AgNPs are extensive, but their use must be carefully managed to minimize adverse effects. Overall, AgNPs have significant potential in medicine, but their environmental and health impacts require further investigation.