Does drinking water make you wee more
We all know we should be drinking more water (especially in a heatwave!). But for many women, there’s a worry that comes with glugging more than a few sips of water: the need to wee. A lot.
And when you’re juggling work, childcare, or trying to leave the house without planning your route around toilets, that can be enough to make you think, “Maybe I’ll just have a cuppa and leave it at that.”
It makes sense. If your bladder already feels sensitive or overactive, it seems logical to cut back on fluids to reduce the number of toilet trips. But holding back on water can actually make things worse, not better! Especially when the weather heats up.
Let’s unpack why drinking water is one of the kindest things you can do for your bladder (and the rest of your body) in the warmer months and why it’s not your enemy, even if you’re already feeling leaky or fed up of running to the loo.
Your bladder loves balance
Your wee isn’t just water. It also contains waste products filtered out by your kidneys, things your body doesn’t need anymore, like salts, urea (a substance made when the body breaks down protein) and other by-products of what you’ve eaten and drunk. When you’re well hydrated, those waste products get nicely diluted in plenty of water. Your bladder fills at a steady pace, the fluid inside stays light, and the bladder lining doesn’t take much notice. It’s a bit like soaking a tea bag in a big pot of water: the brew stays mild and manageable.
But when you’re dehydrated, things change. Your kidneys still need to get rid of the same amount of waste, but now there’s less water to mix it with. That means your wee becomes darker in colour, stronger in smell, and more concentrated. And concentrated wee can be surprisingly irritating to the inside of the bladder, which can make it more reactive and sensitive.
That sensitivity can lead to a feeling of urgency, ie: that sudden “I need a wee now” message, even if there’s not much in there. It can also make you feel like you need to go more often, and in some cases, it can contribute to leaking. So while drinking less might seem like it’s helping in the short term, it can actually leave your bladder more grumpy and overreactive in the long run.
Hot weather means your body needs more
When it’s warm, your body loses more water through sweat, even if you don’t feel sweaty. You’re also more likely to be a bit more active, like going out for a walk, chasing kids round the park, doing the DIY…., just generally moving about more, which means more fluid loss.
If you’re not topping that up by drinking enough, you can become mildly dehydrated quite quickly. And dehydration doesn’t just irritate your bladder. It can make you feel sluggish, dizzy or foggy. It can give you headaches and make your muscles ache. And it can lead to constipation, which is a whole other reason for bladder problems to flare.
So how much is enough?
There’s no one-size-fits-all answer, but a rough guide for most women is around 1.5 to 2 litres of fluid a day, that’s about 6 to 8 good-sized glasses. If you’re sweating more than usual or you’ve been exercising, you might need up to an extra litre (around 2 more glasses).
It doesn’t have to be plain water all day long. Herbal teas, fruit-infused water, and even foods with a high water content (like watermelon or cucumber) all count. That said, fizzy drinks, alcohol, and lots of strong tea or coffee can be more irritating to the bladder, especially if you’re already sensitive.
A good rule of thumb? If your wee is pale and straw-coloured, you’re probably drinking the right amount. If it’s dark yellow, cloudy or smells strong, it’s a sign to top up.
What if you’re still weeing loads?
It might take a little while for your bladder to get used to a new normal. If you’ve been drinking less for a while, it may have become a bit jumpy and started sending signals too early. But don’t panic! This can often be calmed down with some gentle bladder training, tweaks to what and how you drink, and sometimes a bit of pelvic floor support too (see my previous blogs here and here for more advice on how to tame your bladder).
And if you’re dealing with leaks or urgency, drinking more might feel counterintuitive. But again, dehydration won’t fix the problem, it might even be part of the reason things aren’t settling down.
If you’re not sure what’s going on or would just like some guidance, you’re never bothering me by getting in touch. This is exactly the kind of thing I support women with every day.
A few simple tips for sipping smart in the heat:
- Start your day with a glass of water before the kettle even goes on
It’s easy to go straight for tea or coffee first thing, but your body will thank you for starting the day with plain water. After a night’s sleep, you’re naturally a little dehydrated. A glass of water first thing gently wakes up your system, gives your brain and bladder a head start, and sets the tone for the rest of the day. - Sip steadily through the day rather than downing pints in one go
Your bladder prefers a slow and steady approach. Big gulps of water all at once can overwhelm it, especially if it’s already feeling a bit sensitive. Little and often is best. Regular sips through the day help keep you hydrated without the rush-to-the-loo feeling. - Keep a bottle in your bag or on your desk so it’s always in sight
Out of sight, out of mind. Having water nearby is a helpful reminder to keep sipping. A bottle you like (yes, that matters!) makes it more likely you’ll actually use it. Whether it’s a glass jug at home or a water bottle on the go, keeping it visible makes a big difference. - Try water with fresh mint, cucumber or berries if plain water feels boring
If you’re not a fan of plain water, give it a little flavour twist. A few slices of cucumber, a handful of berries or a sprig of mint can make your water feel fresher and more appealing. You don’t need fancy infusers, just pop them straight into a jug or bottle and enjoy. - Notice the colour of your wee – it’s the best clue you’ve got
You don’t need apps, charts or gadgets to know if you’re drinking enough. A quick glance at your wee can tell you most of what you need to know. Pale straw-coloured wee usually means you’re well hydrated. If it’s darker, cloudy or has a strong smell, that’s your nudge to top up.
So if you’ve been avoiding water because of your bladder, you’re not alone, and you’re definitely not silly! But staying hydrated is one of the best ways to support your bladder (especially when it’s hot). And your whole body will thank you for it.
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