What can cause bad chest pain after thoracoscopy surgery?

Surgical pain: It depends on the type of surgery done and the approach, but the pain is likely due to the procedure itself. Since you have to breathe all the time, you can't immobilize the chest. So the usual approach is to medicate the patient to prevent splinting. Failure to take deep breaths can result in pneumonia or lung collapse. So, take the meds and take deep breaths and cough several times per day.

Multiple: Thoracoscopy is still surgery. You can still have a broken rib, nerve compression, hematoma, inflammation, etc. Talk to your surgeon about your concerns.