Start by ruling out what it isn't
Most men who think they're squeezing the pelvic floor are actually squeezing something else. There are three usual impostors: the buttocks, the inner thighs, and the belly. They're bigger, stronger and closer to the surface, so they answer first.
Sit on a firm chair, feet flat. Put one hand under a buttock cheek and rest the other flat on your lower belly, just above the pubic bone. Now do what you think of as a pelvic floor squeeze.
If the cheek under your hand hardens, that's glute. If your belly pushes out into your hand, that's a bear-down, which is the opposite of what you want. If your knees drift together, that's thigh. None of these mean you're doing it wrong forever. They mean the signal is going to the loudest muscle instead of the quiet one.
Check 1: the wind test
This is the cleanest starting point, and it's the one most men recognise straight away. Imagine you're in a lift with other people and you need to stop yourself passing wind. Draw that back passage inwards and upwards. Not clench — draw in.
You should feel something tighten deep inside, closer to the tailbone than to the skin. It's a small, internal, slightly odd sensation. It should not involve your cheeks gripping or your hips lifting off the chair.
Hold it for two seconds, then let it go completely. The letting go matters as much as the squeeze. If you can only find the muscle by also clamping your buttocks, ease off to about a quarter of your effort and try again. Less force usually finds the right muscle faster than more.
Check 2: the shortening test at the front
After prostate surgery, the part of the pelvic floor that matters most for leaking is at the front, around the base of the penis and the urethra. So there's a second thing to look for, alongside the back-passage lift.
Stand in front of a mirror, undressed from the waist down. Do the same gentle draw-in and lift. Watch the base of the penis. When the right muscle works, the penis shortens slightly and draws back towards the body, and the scrotum lifts a little.
That small retraction is one of the most reliable signs you have found the front of the pelvic floor. If nothing moves, don't push harder. Try it lying on your back with knees bent, which takes gravity out of the equation, and look again on another day. Some men see it clearly in week one, some not for weeks after surgery. Both are normal.
Check 3: the hand-on-the-perineum test
The perineum is the soft area between the scrotum and the back passage. It's the underside of the pelvic floor, and you can feel it working from the outside.
Sit on the edge of a chair, or lie on your side with knees bent. Press two fingertips lightly up into that soft area. Do the draw-in and lift. You should feel the tissue under your fingers move away from your fingers, pulling up and in.
If instead it bulges down and presses harder into your fingers, you're bearing down. That's a common mistake, and it does the opposite of helping. Stop, breathe out, and try again with a much smaller effort while imagining lifting rather than pushing.
Check 4: keep breathing and talking
Here's a test that catches a mistake almost everyone makes at first. While you're holding the squeeze, count out loud from one to five in a normal speaking voice.
If you have to hold your breath, or your voice goes tight and strained, you're recruiting your abdominals and your diaphragm to help. That builds downward pressure through the belly — which is pressure on the bladder, not support for it.
A correct hold should be almost invisible from the outside. Someone sitting opposite you at a table should see nothing. Nothing in your face, nothing in your shoulders, nothing in your jaw. Breathe normally the whole way through. If you can't yet, drop the effort by half and build back up.
The test to do once, and then stop doing
You'll hear the advice to stop your flow midstream to identify the muscle. It does work as a one-off identification check, and it tells you clearly what the right sensation feels like.
But don't make it your exercise, and don't do it regularly. Interrupting the flow repeatedly can confuse the normal bladder-emptying reflex and leave urine behind. Use it once, take the memory of the feeling, and train away from the toilet from then on.
If you try it and nothing slows at all, that's information rather than failure — particularly in the early weeks after surgery, when the area is still settling. Go back to the wind test and the mirror.
What a good contraction actually feels like
Once you've got it, it's worth naming so you can find it again. Most men describe a deep internal lift, low in the pelvis, roughly behind the pubic bone. Small. Quiet. A drawing-up and drawing-in rather than a grip.
There's usually a clear sense of release when you let go — a settling back down. If you feel no difference between held and released, you may not have been holding much. That's worth knowing early, before you build weeks of practice on top of it.
It should never hurt. Aching in the buttocks or thighs afterwards means you were using them. A deep, low tiredness in the pelvis after a set is normal and fades. Sharp pain, burning, blood, or a sudden change in how you're leaking is not a training question — take that to your doctor rather than trying to work it out yourself.
Confirming it again in a few weeks
Finding the muscle isn't a one-time event. Technique drifts, especially as you get stronger and start holding longer or training standing up. Old habits — the buttock, the breath-hold — creep back in when you're tired or concentrating on the count.
Put a re-check in the diary. Once a fortnight, go back to basics: mirror, fingertips on the perineum, counting out loud. It takes two minutes and it protects every other session you do.
It also gives you something to measure. Not leaks, which move around week to week for all sorts of reasons, but control. Can you find it faster than you could a month ago? Can you hold it while you talk? Can you do it standing? Those are the signs the work is landing, and they usually show up before the laundry does.