Throwing up while scuba diving can happen, but there’s a safe way to handle it. Divers should keep the regulator in their mouth while they vomit, as removing it can lead to inhaling water. After vomiting, they can use the regulator’s purge button to clear it out. If the situation gets difficult, especially with a full face mask, switching to an alternate air source is advised. It’s important to remember that vomiting underwater means you should pay extra attention to your equipment afterward.