Thank you for the query.
Hemorrhoids surgery is not necessary as long as it doesnt bother you, does not cause bleedings or any other symptoms. Usually the patient decides when to have it removed with surgery. So the answer is no, it is not necessary to take the operation.
To improve its condition you should avoid constipations (increase fiber rich products and mineral water intake), have sitz baths with Quercus Cortex
and use prescription free hemorrhoids suppositories.
Hope this will help.