Most hemorrhoids can be dealt with by using creams and other topical and even oral medications relatively quickly and painlessly.  However, sometimes hemorrhoids get worse and people are faced with surgery as the only option. 
Hemorrhoids are just blood veins that have become enlarged and are almost exatly the same as varicose veins, the only difference being that the hemorrhoids happen on the anus instead of the legs. 

Most hemorrhoids appear outside of the anus, and can thus be removed realtively easily.  Some hemorrhoids however, occur inside the anus and take more work by the surgeon to be removed.  Regardless of the area where hemorrhoids appear, the surgery still takes place in the part of a the body that has a lot of nerves, and there is going to be a lot of pain and discomfort involved.  Usually, the pain, discomfort and itching will intensify after the surgery, but once it heals, chances are you will be rid of hemorrhoids for good.

For a hemorrhoidectomy, the patient is put to sleep and when they wake up after the procedure, they do not immediately feel pain as they are still under anesthesia.  Once the pain killers wear off the patient will be in a lot of pain, so it is generally advised to have prescribed pain medication ready, and taken before the anesthesia fully wears off.  The patients will also be advised to take 2-3 baths per day in hot water ( the hotter the better ) to help manage the pain as well as to help with the healing process.

Anyone thinking about hemorrhoidectomy should know that the pain will be more intense than anything they have likely encountered, so they can prepare for the experience ahead of them.