Some patients can have vivid and detailed sexual hallucinations during anesthesia with sedative-hypnotic drugs like propofol, midazolam, diazepam and nitrous oxide. Some make suggestive or sexual comments or act out, such as grabbing or kissing medical professionals or touching themselves in a sexual way. Others awaken erroneously believing they were sexually assaulted. Why does this happen?
Doctors have long known that sedative-hypnotic drugs, which slow down brain activity to induce calm or sleep, can affect a patient’s perception of reality. A 1984 review of the drugs midazolam, ketamine and thiopental found that 18% of patients receiving anesthesia for a dental or medical procedure had a hard time distinguishing reality from fantasy during and shortly after administration. Similarly, a 1980 study found that around 14% of patients report some sexual dreaming or arousal while under anesthesia. It’s no surprise that together these two features of anesthesia could sometimes manifest in sexual hallucinations.
