Many patients return to work a few months after surgery. Others have found that working is not an option due to incontinence and unmanageable symptoms. Some have had to find work that allows them to be able to visit the bathroom frequently- and that is not always easy. LARS is not a published disorder and if you are seeking payment from your government to support you financially- it would likely make a better case to report incontinence.
As overall well-being plays a vital part in improvement, it is highly recommended that you try and work as normal as possible. Talking with employers and asking for accommodations is not only reasonable, but in most countries there are laws that protect employees.
Talk with your doctors or other support professionals to plan for your future working environment or disability claim.