Not from my experience, and I've been under anesthesia at least twice while high. Pretty non-reactive stuff, that THC. It's very similar to chemicals in the brain (which were discovered after THC and named after it, endo-cannabinoids), so i doubt there would be any cross effects. Maybe increased chance of nasuea afterwards, but that would be it.
Anesthesiologists are conducting research to determine exactly how certain herbs and dietary supplements interact with certain anesthetics. They are finding that certain herbal medicines may prolong the effects of anesthesia. Others may increase the risks of bleeding or raise blood pressure. Some effects may be subtle and less critical, but for anesthesiologists anticipating a possible reaction is better than reacting to an unexpected condition. So it is very important to tell your doctor about everything you take before surgery.
Can anesthesia cause fluid retention
Nothing can cause a false positive for THC.
No, THC does not cause cancer. However, the smoking associated with it can quite easliy do so.
Previous ingestion of thc.
I think it will not cause hair loss.
What cause after lower anesthesia Si can't not open my mouth