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by Lianne
(Wales, UK)

My 9-month-old baby pees frequently but it has begun to smell strong, especially the nappy I change first thing in the morning. She drinks 19ozs of milk a day and has water at every mealtime. Her pee is not dark in colour and she doesn’t seem to be in any discomfort, but I am concerned with this sudden change in smell.

Baby Help Line:

Smelly Urine In Infants

Sometimes a baby’s pee can smell strong because they have a Urinary Tract Infection but it is usually accompanied by fever and a lot of crying.

Your baby seems to be getting enough fluids so I would try giving your baby a little bit of cranberry juice for babies.

Sometimes their pee just smells strong because of something different they ate or drank. If this smell is still bothering you I would go to the Dr and get it checked out just to be safe. Write down what the baby eats and drinks for a day or two before you go and I am sure your doctor can narrow it down to what is causing the smell.

If your baby doesn’t have any other symptoms she is probably just eating something that’s making it smell bad. The fact that the first diaper in the morning is the most smelly one is completely normal. The diaper hasn’t been changed for several hours and can certainly begin to smell even if the baby is completely healthy.

I hope this helps,


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Nov 30, 2012

1st time mom

by: Newman

I have a nine and half month old and we experienced this as well starting about 7 months, which is also when she started teething. I talked to a few other moms, including my own and was told it was a normal side affect of teething, but doesn’t really go away after the teething is finished, but the smell does get a little better from what i have noticed.

From my research i have found there can be a few other causes as well-Change in formula or from BM to formula, starting new foods or starting to eat more solid foods/finger foods, colds and/or other sinus problems, were the main ones i found.

As long as she doesn’t seemed bothered by it and she is still urinating as usual i wouldn’t worry about it, but if it does become dark in color or her belly starts to bother her i would call her doctor.

Apr 17, 2013

baby pee smells
by: amanda

hi there I would definitely get your baby checked if his or her pee smells weird. even if u think it might be different foods or drinks. no get it checked my son’s pee started to smell at 4weeks old and it was a weird smell and even my nurse told me he was fine but I knew something wasn’t write he didn’t have a fever but he was really bad with his feeds he would fight every bottle and do a big spew almost after every bottle he was really unsettled so I took him to the doctor and they told me take him straight to Westmead children’s hospital so I did turns out he had a uti. the next morning we were back for a ultrasound to check his kidneys turns out he had grade 1 kidney reflux so they put him on antibiotic’s so then we had to go back when he was 3months old and then bad news hit it had gone from grade 1 to grade four kidney reflux and the highest it gets is grade 5 so it was pretty bad .
so far his kidneys have gone down from being swollen but no scaring yet.he is now 7months old and still on antibiotic’s we go back when he is 1 to see if it is still there if it is I hope they will fix it. so yeah I think no matter what anyones says you should always go to the doc and get it looked at its better to be safe then sorry

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