A lactose intolerant baby often looks uncomfortable, fussy, and may have a bloated belly, gas, and frequent, watery, green, or frothy stools after feedings, sometimes with significant diaper rash, crying during bowel movements, poor weight gain, and excessive spitting up or vomiting. These symptoms typically appear within 30 minutes to a couple of hours after consuming milk or formula, but always see a doctor for a proper diagnosis as these signs can mimic other conditions.
Diarrhoea can be a symptom of lactose intolerance in babies.
Mucus in the Poop
Mucus in stool typically looks slimy and jelly-like and may indicate a cow's milk protein allergy, especially if the poop is loose, green, and contains blood.
Symptoms often begin to appear in after age 5, but can start as early as age 2. Symptoms begin about 30 minutes to 2 hours after having foods or drinks containing lactose.
You have symptoms of lactose intolerance and: your symptoms keep coming back and often happen after eating. you've noticed changes in your poo that are not usual for you, such as looser poo, pooing more often, or constipation for 3 weeks. you've have blood in your poo for 3 weeks.
Symptoms and Diagnosis
Persisting symptoms suggestive of lactose intolerance include abdominal bloating, increased (explosive) wind and loose green stools for more than 2 weeks. If any other symptoms are present, including atopy or family history of atopy, consider alternative diagnosis e.g. CMPA.
If you notice black in your baby's stool and your baby is more than a few days old (meaning their black stool is not likely meconium), call your baby's healthcare professional immediately. Contact your baby's healthcare professional right away if you see: Blood or mucus in stool. Pale, colorless, or white stool.
People with lactose intolerance often have diarrhea, gas and bloating after eating or drinking foods containing lactose. The condition is usually harmless, but its symptoms can cause discomfort. Too little of an enzyme made in the small intestine, called lactase, is usually responsible for lactose intolerance.
Common Foods to Avoid if Lactose Intolerant
If your baby's stools are hard, and your baby seems like they are working hard to poop, it's a good idea to call your pediatrician. Seeing red in your newborn's stool is typically a cause for concern.
Primary (caused by diminishing lactase production in your small intestine). Secondary (caused by injury or disease that damages your small intestine). Congenital (caused by lactase deficiency present at birth). Developmental (caused by premature birth, when the small intestine is underdeveloped).
Usually cutting out lactose-containing milk and dairy products from the diet for 8 weeks will give the gut time to heal. The ability of the gut to produce lactase will build up again and after 8 weeks, the child should be able to drink milk/ formula and eat regular dairy products.
Signs and symptoms of milk allergies
If your child is allergic to the protein in cow's milk, it may cause symptoms in multiple areas of the body, including: Skin: Hives (red, blotchy skin that can itch) and may include mild to severe swelling. Lungs: Difficulty breathing, shortness of breath, coughing or wheezing.
If your baby is experiencing constipation, diarrhoea, excessive wind or tummy pain, this could be a sign that the infant formula milk you're using doesn't agree with your baby's digestive system. Have a word with your healthcare professional for further advice.
Clinical trials show that 40% of babies medically diagnosed with colic suffer from “colic associated with lactose intolerance”. In these cases, the baby's excessive crying and other colic symptoms are due to transient lactose intolerance, often caused by an immature digestive system.
The symptoms of lactose intolerance in babies and children are:
Cow's milk protein allergy (CMPA) can affect people of all ages but is most prevalent in infants, affecting between 2 and 7.5% of formula fed and 0.5% of exclusively breastfed babies.
Symptoms of lactose overload
frequent large, runny poos which might be green, frothy or explosive*
Goat's milk is often considered a suitable alternative for babies who cannot be breastfed or have difficulties digesting cow's milk. The smaller fat globules found in goat's milk make it easier for babies to digest, reducing the strain on their developing digestive systems.
Evidence-Based Answer. Infants with Gastroesophageal reflux disease (GERD) who do not respond to Protein Pump Inhibitor (PPI) therapy may have resolution of symptoms following elimination of cow milk protein from breastfeeding mothers' diet (SOR: C, small cohort study).
The 7 key danger signs for newborns, often highlighted by organizations like the WHO, are not feeding well, convulsions, fast breathing, severe chest indrawing, lethargy/unconsciousness (movement only when stimulated), high or low temperature, and jaundice (yellow skin/soles) or signs of local infection like an infected umbilical stump, requiring immediate medical attention.
Signs of dehydration in a baby may include: