Insulin delivery systems are evolving to better treat the growing prevalence of diabetes. Traditional insulin therapy involves subcutaneous injection but alternative delivery methods are being explored. These include insulin pumps that continuously deliver insulin through a catheter or cannula implanted just under the skin. Transdermal delivery methods like jet injection are also being studied as are oral medications, though developing effective oral treatments remains a challenge. Researchers are also working to cure diabetes through gene and cell therapies like using viral vectors to induce insulin production in response to blood sugar levels or transplanting pancreatic cells. Overall, new insulin delivery technologies aim to improve treatment for the millions suffering from diabetes worldwide.