7 Things Nobody Tells You When You Are Handed A Bladder Tablet

This is the one nobody says out loud and everything else follows from it.

An overactive bladder tablet works on the signalling between the bladder and the brain. It turns down the message. That is a sensible thing to do if the message is the fault — if a bladder is reporting full at a normal volume because the nerve is overexcitable.

In patients over 55 that is usually not what I find. I find a bladder reporting full because it genuinely cannot hold what it used to, and the nerve reporting that accurately. Turning down an accurate message makes it quieter. It does not make it wrong.

Almost every patient who reaches me has had both and has been reassured by both.

An ultrasound measures a bladder as a container: size, shape, what is left after you go. A urine culture looks for infection. A pressure study looks at the muscle. All three are worth doing and all three are looking at different things from the one I am about to describe.

None of them looks at the surface of the bladder wall. So a patient with a significant amount of deposit on that surface gets three normal results and is told there is nothing wrong, which is not the same sentence as nothing was found.

Every patient has tried it and it is the single most common piece of self-prescribed advice in this condition.

Concentrated urine is more irritating to a lining that is already irritated. Drink less in the evening and what arrives in the bladder overnight is stronger, so a wall that was already calling early calls earlier. Patients then wake thirsty, drink at four in the morning, and get up again anyway.

I am not telling anyone to drink a litre before bed. I am telling them the restriction is not buying what they think it is buying.

Dry mouth, dry eyes and a degree of mental fog are the three things my patients report most on the older class of these tablets, and they are not trivial. A patient who is waking at four with a mouth like paper, drinking a glass of water and then getting up again has had the original problem recycled back to him by the treatment.

This is worth saying to the person who prescribed it. There are other molecules, there are other classes, and there is a dose conversation. That is their decision and not mine, and certainly not an article's.

I prescribe them and I stand by them. They strengthen what holds urine in, and for a patient whose problem is leaking on a cough or a sneeze they are genuinely the first-line treatment.

But most patients who come to me about getting up at night do not have a closure problem. They have an urge problem — a bladder announcing itself far too early. Strengthening the outlet does not change when the announcement comes. Patients do the exercises diligently for six weeks, see no change in the nights, and conclude they have failed at something. They have not. They were given a treatment for the wrong half of the problem.

Everything above is either a habit or a treatment aimed somewhere else. This is the physical thing underneath all of it.

A bladder measures fullness by stretch. That is the entire mechanism: the wall stretches as it fills, and at a certain stretch a signal goes up. Now consider that urine is not clean water. It carries mineral salts, calcium oxalate, uric acid, phosphate. Over fifty or sixty years some of that settles out and bonds to the lining as a thin pale film.

Tissue carrying that film does not stretch the way bare tissue does. A bladder that cannot stretch reaches the signalling threshold at roughly a third of its capacity. That is a genuinely full-feeling bladder holding very little, which is exactly what my patients describe and exactly what makes them think they are imagining it when hardly anything comes out.

And no routine test in the pathway looks at it.

This is the one that makes me angry, and not at the patient.

Age is a risk factor. It is not an explanation and it is not a diagnosis. When a man of sixty-seven is told that getting up three times a night is normal at his age, what he hears is that there is nothing to be done, and he stops asking. I have had patients who stopped asking for a decade.

Something physical changed between fifty and sixty-seven. Age is the clock it happened on, not the thing that happened.