At 3am, do not start with a wrench. Start by keeping Mom off a toilet seat that shifts under her.
If she has fallen, follow the first ten minutes after a fall. If she has not fallen, give her another way to toilet or stay close enough to steady the situation without pulling on her arms. Leave the repair for full light.
Walk the six stops before you touch the bolts
In the morning, walk from the bed to the toilet in order: bed edge, standing space, open floor, bathroom entry, turning space, toilet. Clear only what blocks your inspection. Do not let a loose seat pull your attention away from an earlier problem on the route.
At the toilet, close the lid. Put one hand on the seat and try to move it gently from side to side. Then place one hand on the toilet bowl and test it separately. Do not strain, rock, or sit on either part during this check.
You are answering one question: does only the seat move, or does the toilet itself move?
Do it yourself only if the problem stays at the seat
A do-it-yourself tightening is a reasonable choice when the bowl stays still, the floor around it is dry, the porcelain has no visible crack, and you can reach both seat fasteners without forcing them. Toilet seats commonly attach through holes at the back of the bowl, but the fastener style varies, so use the seat maker’s instructions when you can identify the seat. The desk’s source file points to the public guidance behind its home checks.
Before removing anything, take a clear photo of each fastener from above and below. Hold the lower nut still if the design requires it. Tighten in small turns, alternating sides. Stop when the seat no longer slides. Do not keep turning just to make the bolt feel harder.
Open and close the seat and lid. Test sideways movement again. Then have Mom approach through all six stops in daylight while you watch. The repair is not finished merely because the bolt turned. It is finished when the seat stays centered as she turns and sits.
Hire the repair when the problem is larger than the seat
Call a plumber if the bowl moves, water appears around the base or supply connection, porcelain is cracked, or the fasteners cannot be reached without moving the toilet. Those signs move the job beyond a simple seat adjustment. Keep Mom from using that toilet until the plumber tells you what is safe to use.
A handyperson may be enough when the bowl is firm and dry but the seat hardware is corroded, stripped, or inaccessible to you. When you call, say exactly what you found: “The bowl does not move. The seat moves sideways. The fastener under the left side will not turn.” Ask whether the person will supply replacement seat hardware, whether they need the seat model, and whether they will test the seat under normal use before leaving.
Do not describe the request only as “bathroom safety.” Ask for a firm, centered toilet seat and a written note if the seat, bowl, floor, or plumbing needs another repair.
What to write down
Write one line for each part of the check:
Seat moved: yes or no.
Bowl moved: yes or no.
Floor was dry: yes or no.
Visible crack: yes or no.
Both fasteners reachable: yes or no.
Repair attempted: what you tightened or replaced.
Daylight route test: what happened at the turn and sit.
Person responsible for rechecking: name and day of the week.
If Mom says she felt dizzy, weak, faint, unusually sleepy, or otherwise different during the trip, write her words down and call her physician. Keep the repair question separate from the clinical question.
If you need local help after another fall, use the desk’s St. Louis help page. For the rest of the route, return to the reading path and take the six stops one at a time.