An endoscopy is generally considered a safe procedure, but like any medical procedure, it carries some risks. The level of risk often depends on various factors including the patient's overall health, the reason for the procedure, and any potential complications that might arise during or after the endoscopy.

Here are some potential risks associated with an endoscopy:

1. Bleeding: Biopsies or the removal of polyps during an endoscopy can sometimes cause bleeding, although it's usually minor and stops on its own or can be managed during the procedure.

2. Perforation or tear: There's a small risk of a puncture or tear in the gastrointestinal tract, which could lead to complications requiring further treatment.

3. Infection: Although rare, there's a small risk of infection, particularly if the endoscope isn’t properly sterilized or if the patient has a weakened immune system.

4. Reactions to sedation: Some people might have adverse reactions to the sedatives or anesthesia used during the procedure, although these are typically mild.

5. Respiratory issues: In some cases, the sedatives used can temporarily affect a person's ability to breathe properly, particularly in individuals with respiratory issues.

It's important to note that the majority of endoscopies are performed without any complications. The benefits of the procedure often outweigh the potential risks, especially when it's necessary for diagnosing or treating certain gastrointestinal conditions.

Before undergoing an endoscopy, your healthcare provider will discuss the procedure with you, explain the risks, and answer any questions you might have. They'll also provide instructions on how to prepare for the procedure and discuss any specific risks or concerns based on your individual health situation.