I have been suggested surgery for my L5S1 disc herniation. One neurosurgeon has told me about microendoscopicdiscectomy surgery which he performs. Whatever I have learnt from different sources including here is that microdiscectomy is generally performed. One another thing is that my old MRI from October last year has shown the height of disc to be 9 mm, where as my latest MRI from August this year is showing the disc height reduced to 6.5 mm. Now surgery has become eminent as my conservative treatment is not beneficial any more. Please tell me whether after operation this degeneration of my disc will stop or it will continue? Another thing is about choosing between Microendoscopicdiscectomy and microdiscectomy. Your suggestion is welcome as I am very confused.