A broad claim that the Vatican is accessible is insufficient. Check transport drop-off, queue arrangements, toilets, and whether a companion must provide personal assistance.
Vatican City · YOUR QUESTION, ANSWERED
Is the Vatican wheelchair accessible?
Partly. St. Peter’s Basilica itself is accessible at ground level, and the Vatican Museums offer an accessible route with elevators and wheelchairs on loan, but the basilica, museums, dome, and underground areas are distinct experiences. The dome requires 320 steps even after the elevator; the Scavi necropolis tour involves narrow, uneven passages and is not accessible; the full museum route is 2–3 hours and several kilometers; and the catacombs elsewhere in Rome all require stairs. Ask the relevant site about the exact route and assistance needed.
Sources & further readingSt. Peter's Basilica: visitor questionsVatican Museums: visitor information
Official sources cover institutional information. Suggested pacing and itinerary choices are planning guidance. Check current arrangements for your travel dates.