
It's not uncommon for babies to have a strong odour, and it's usually nothing to worry about. However, if your baby's neck smells like cheese, it could be due to a condition known as milk neck. This occurs when milk, drool, or spit-up runs down your baby's neck and becomes trapped in the skin folds, causing a build-up of gunk that can smell cheesy. This is more common in babies aged 0-4 months who don't yet have the strength to hold their necks up, causing milk to spill down their necks. It can also be caused by tight-fitting clothing that rubs on the neck folds.
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What You'll Learn
- Milk neck, also known as baby neck cheese, is caused by milk, saliva, or drool collecting in the neck folds
- Body odour in babies can be caused by a lack of hygiene, resulting in irritation, redness, and bacterial or fungal infections
- A baby's neck rash may be caused by an allergy to cow's milk, which can be passed through breast milk or infant formula
- Intertrigo, a common skin condition, can cause a rash on a baby's neck due to friction and yeast infections
- Unusual body odour in babies, such as a fishy or fruity smell, may indicate an underlying medical condition

Milk neck, also known as baby neck cheese, is caused by milk, saliva, or drool collecting in the neck folds
"Milk neck", also known as "baby neck cheese", is a common condition in babies aged 0-4 months. It is caused by milk, saliva, or drool collecting in the neck folds, creating a pungent cheese-like odour. This occurs because babies lack the strength to hold their necks up, causing the chubby rolls of skin to rub together and trap moisture. The thin skin of newborns and their immature immune systems also contribute to the development of milk neck.
Milk neck can be prevented by ensuring that your baby's clothing is loose and comfortable. Tight-fitting clothes can irritate the skin and make the condition worse. It is also important to keep your baby's neck area clean and dry. This can be achieved by gently cleaning the neck folds with a damp cloth and allowing them to air dry. You can also use baby powder or cornstarch to absorb moisture and prevent milk neck.
In some cases, milk neck may be accompanied by redness or a rash. This can be treated with breast milk, which has natural healing properties, or over-the-counter creams designed for sensitive skin. If the rash persists or spreads to other body parts, it is important to consult a doctor or seek medical care.
Additionally, milk neck can be prevented by controlling the flow of milk during feeding. Paced feeding or using a bottle with a slower flow rate can help prevent milk from spilling down your baby's neck. It is also recommended to burp your baby frequently during feeding to reduce the amount of milk that comes back up.
While milk neck is a common condition, it is important to maintain good hygiene and keep your baby's neck area clean and dry to prevent any skin infections or irritations.
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Body odour in babies can be caused by a lack of hygiene, resulting in irritation, redness, and bacterial or fungal infections
Body odour in babies is often caused by milk, baby products, heat, dust, sweat, and urine. However, a lack of hygiene can also be a contributing factor. For instance, dirt and sweat trapped in the neck area, underarms, or skin folds can cause a sour body odour. This can lead to skin irritation, redness, and bacterial or fungal infections.
The neck area of babies is particularly susceptible to these issues due to the skin folds, which can trap heat and create blockages that lead to inflamed bumps. This is a common site for intertrigo, a skin condition caused by friction that can irritate the skin and result in a rash. The friction from tight-fitting clothing can further irritate the skin and create a rash. Additionally, excessive moisture in the neck region can create an environment conducive to yeast infections, as fungus thrives in moist areas.
To prevent and address these issues, it is important to maintain good hygiene practices. This includes regularly cleaning the baby's neck area, especially during bathtime or with baby wipes. Allowing the area to air dry and applying products like baby powder or diaper rash creams can also help. Ensuring loose-fitting and comfortable clothing can reduce friction and irritation.
In some cases, body odour in babies may be indicative of an underlying condition. Unusual smells, such as fishy, fruity, or musky odours, could signal hepatic or kidney disorders. A rare condition called ""fish odour syndrome" may also cause a fishy smell in the breath, urine, and sweat. If body odour is accompanied by other symptoms such as fever, rash, or unusual behaviour, it is important to consult a medical professional.
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A baby's neck rash may be caused by an allergy to cow's milk, which can be passed through breast milk or infant formula
A baby's neck can sometimes smell like cheese due to "milk neck", which is when milk, drool, or spit-up gets trapped in the folds of a baby's neck and causes redness and a cheesy smell. This is more common in babies aged 0-4 months, as they don't yet have the strength to hold up their necks, and the chubby folds of skin can trap milk and cause irritation.
In terms of treating and preventing milk neck, it is recommended to keep the baby's neck clean and dry, and to ensure that their clothing is loose and comfortable to reduce friction and irritation. Baby powder can also be used to keep the area dry and prevent rashes.
Now, while neck rashes in babies are usually not a cause for concern, they can sometimes be indicative of an allergy. In particular, a baby's neck rash may be caused by an allergy to cow's milk, which can affect both formula-fed and breastfed infants. Cow's milk allergy, or cow's milk protein allergy, occurs when a baby's immune system mistakenly identifies the proteins in milk as a threat and reacts with a range of symptoms.
For formula-fed infants, the first symptoms of a cow's milk allergy typically appear days to weeks after they first start consuming cow milk-based formula. For breastfed infants, symptoms may appear after the breastfeeding mother consumes milk products, as the cow milk proteins can pass into the breast milk. Symptoms of a cow's milk allergy can include persistent crying, clenched fists, an arched back, hives, breathing problems, diarrhoea, and vomiting. It is important to note that the severity of allergic reactions can vary, and a mild reaction does not rule out the possibility of a more severe reaction in the future.
If you suspect your baby has a cow's milk allergy, it is important to consult your child's healthcare provider. They may recommend an elimination diet or a specialty formula to determine if an allergy is present. If a cow's milk allergy is diagnosed, adjustments can be made to the breastfeeding mother's diet, or the formula can be switched to an extensively hydrolyzed or amino acid-based formula.
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Intertrigo, a common skin condition, can cause a rash on a baby's neck due to friction and yeast infections
It's not uncommon for parents to notice a peculiar cheese-like odour emanating from their baby's neck. While it may be concerning, this smell is often due to a common skin condition called intertrigo. Intertrigo develops in areas of the body where skin rubs against skin, such as the neck, armpits, groin, and diaper area. It is especially prevalent in infants due to their delicate skin and the constant friction caused by clothing, car seats, or even their own hands and fingers. The condition is characterised by a red rash that can ooze and become crusty, causing discomfort and, in some cases, an unpleasant odour.
The rash associated with intertrigo is often a result of a yeast infection. Yeast naturally occurs on the skin, but when the skin is irritated and damaged due to friction, yeast can overgrow, leading to an infection. This yeast infection contributes to the characteristic cheese-like smell. The odour is produced by the breakdown of skin cells and oils by the yeast, creating volatile organic compounds that have a pungent odour.
To manage intertrigo and alleviate the symptoms, it's important to keep the affected area clean and dry. Gently wash the neck with warm water and a mild soap, ensuring that the area is thoroughly rinsed and dried afterward. Applying a thin layer of zinc oxide or a nappy rash cream can help soothe the skin and create a barrier to protect it from further irritation. In more severe cases or when the rash does not improve with home care, a healthcare provider may prescribe a mild topical steroid cream to reduce inflammation and an antifungal cream to treat the yeast infection.
Additionally, taking preventative measures can help reduce the occurrence of intertrigo. Dress your baby in soft, loose-fitting clothing made from breathable fabrics like cotton, which will minimise friction on the skin. Avoid overdressing your baby, as excess sweating can create a moist environment conducive to yeast growth. Regularly cleaning your baby's neck and skin folds with warm water and a gentle cleanser can also help prevent yeast overgrowth. With proper care and attention, intertrigo can be managed effectively, ensuring your baby's skin remains healthy and comfortable.
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Unusual body odour in babies, such as a fishy or fruity smell, may indicate an underlying medical condition
The cheese-like smell coming from your baby's neck is likely due to "milk neck", a common condition where milk or saliva gets trapped in the folds of a baby's neck, causing a pungent odour. This is especially common in babies aged 0-4 months, as they do not yet have the strength to hold their necks up, causing milk to spill down their neck.
However, unusual body odour in babies, such as a fishy or fruity smell, may indicate an underlying medical condition. For example, babies with liver diseases, such as viral hepatitis, may have a body odour resembling rotting fish due to the accumulation of TMA in their system. Kidney disorders can also cause a similar fishy smell due to excessive bacterial growth in the intestine. In rare cases, a genetic abnormality may cause a condition known as "fish odour syndrome", resulting in a fishy smell in the breath, urine, and sweat.
Additionally, certain metabolic disorders can cause distinct odours in various body secretions. For instance, maple syrup urine disease (MSUD) can cause a baby's urine to smell sweet, resembling maple syrup or cake. If left untreated, MSUD can lead to neurological problems such as seizures. Unusual body odours, especially when accompanied by other symptoms, should be evaluated by a medical professional to rule out any underlying health issues.
In terms of treatment for milk neck, it is recommended to keep the neck area clean and dry. Use a damp cloth to wipe away any milk or saliva, and then allow the area to air dry. You can also use baby powder or cornstarch to absorb moisture and prevent rashes. Ensure that your baby's clothing is loose-fitting and made from breathable fabric to minimise irritation and create a barrier against moisture.
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Frequently asked questions
The cheese-like smell could be caused by milk neck, which is when milk, drool, or spit-up gets trapped in your baby's neck rolls and causes a sour smell. This is most common in babies 0-4 months old who don't yet have the strength to hold up their necks.
To prevent milk neck, you can do neck-stretching exercises with your baby and keep the neck area clean and dry. You should also ensure your baby's clothes are loose and comfortable to avoid creating irritation and a rash.
To treat milk neck, you can use baby wipes, micellar water, or a damp cloth to wipe down your baby's neck. You can then apply products like baby powder, Vaseline, or diaper rash cream to the area.
While body odour in babies is usually not a sign of a serious problem, you should seek medical advice if your baby has an unusual smell, such as fishy, fruity, or musky. You should also consult a doctor if the rash migrates to other body parts or is accompanied by breathing difficulties or a high fever.
























