**6.9 Radiofrequency ablation (RFA)**

This technique is relatively new, with an RFA spherical electrode anoscope connected to a radiofrequency generator, attached to the hemorrhoid tissue, which causes evaporation and coagulation of the tissue. In this way, the vascular component will be reduced and fixed to the underlying tissue through fibrotic tissue. Complications that have been reported are thrombosis, wound infection, and urinary retention. From the evaluation of this method, the risk of rebleeding and prolapse is still quite high [2].

## **6.10 Cryotherapy**

Freezing hemorrhoid tissue with a cryotherapy probe is claimed to provide low pain because it is carried out at a low temperature, but in fact, several clinical trials have shown prolonged pain, prolapse, and foul-smelling discharge, so this method is now rarely used [2].
