Objective To investigate the effect of drainage tubes with different diameters on rehabilitation and wound healing after microporous thoracoscopy.

Methods Clinical materials of 89 patients with microporous thoracoscopy were retrospectively analyzed, and 8F, 16F and 24F drainage tubes were used respectively. The wound healing condition and drainage condition after operation were compared.

Results The poor healing rate of incision after operation was 0% in group 16F and group 8F, while was 13.3% in group 24F; there was no significant difference in postoperative drainage condition between group 16F and group 24F (P>0.05); the incidence of severe subcutaneous emphysema or pneumothorax in group 16F was 0%, which was lower than 13.8% in group 8F; compared to patients with the external chest bottle in group 24F, the patients with external negative pressure ball in group 16F were able to complete bed-off activity earlier.

Conclusion Efficacy of 16F drainage tube is much better in patients after microporous thoracoscopy. Optimizing the tube placement technology and suture skills are beneficial to wound healing and rapid postoperative recovery.