Preoperative fasting is the term used to describe the time before a surgical procedure during which patients are not permitted to consume any liquids or solids by mouth. Pre-operative fasting guidelines for adult patients are critical for ensuring the well-being and safety of surgical patients. Pre-operative fasting is a standard practice designed to reduce the risk of complications during surgery, such as gastric aspiration. Fasting helps to prevent complications like pulmonary aspiration pneumonia, which can occur if patients do not empty their stomachs before surgery. Fasting durations for solids, liquids, and clear fluids are typically recommended in guidelines. Fasting before surgery or medical procedures that require anesthesia is a common practice. Fasting is done to reduce the risk of aspiration, which occurs when stomach contents enter the lungs during anesthesia and can lead to serious complications. The general guidelines for preoperative fasting typically include avoiding solid food for a specific period before the procedure, as well as limiting liquid intake. Fasting durations and recommendations, on the other hand, can vary. There has been some evolution in preoperative fasting guidelines in recent years. The traditional method involved fasting for extended periods, sometimes up to 12 hours or more for solid food and 2-6 hours for clear liquids. Recent research and updated guidelines in various countries suggest that shorter fasting periods may be just as effective in preventing aspiration while also improving hydration and reducing the stress associated with prolonged fasting. Many healthcare facilities are now more relaxed about preoperative fasting, allowing clear liquids up to 2 hours before surgery and light meals up to 6 hours before the procedure. It is important to note, however, that these guidelines are subject to change, specific fasting instructions are dependent on factors such as the type of surgery, the patient's health status, and .....