I Found Blood in My Newborn's Diaper
Medically reviewed by Dr. Michael Okonkwo, MD, FAAP · Board-Certified Neonatologist
Content reviewed against published AAP, AAP, Mayo Clinic guidelines
Last reviewed:
If your baby has been diagnosed with or you suspect i found blood in my newborn's diaper, here is what the evidence says.
The short answer
Finding blood or red-tinged spots in a newborn's diaper is alarming but often has a benign explanation. Urate crystals (brick-red or orange powder) are very common in the first few days and are harmless. Newborn girls can have a small vaginal discharge or spotting from maternal hormones. However, frank blood in the stool or persistent bleeding always needs medical evaluation.
Key takeaways
- Finding blood or red-tinged spots in a newborn's diaper is alarming but often has a benign explanation. Urate crystals (brick-red or orange powder) are very common in the first few days and are harmless. Newborn girls can have a small vaginal discharge or spotting from maternal hormones. However, frank blood in the stool or persistent bleeding always needs medical evaluation.
- Usually normal when: Brick-red or orange powder (urate crystals) in the diaper during the first 2-3 days of life in a feeding newborn
- Call your doctor if: There is a large amount of frank blood in the diaper, the stool looks like currant jelly, or the blood is dark and tarry, as these can indicate a serious condition such as intussusception or internal bleeding
- Varies by age — see the age-by-age breakdown below
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What Parents Should Know
According to AAP, Mayo Clinic guidelines, finding blood or red-tinged spots in a newborn's diaper is alarming but often has a benign explanation. Urate crystals (brick-red or orange powder) are very common in the first few days and are harmless. Newborn girls can have a small vaginal discharge or spotting from maternal hormones. However, frank blood in the stool or persistent bleeding always needs medical evaluation. At 0-5 days, in the first few days of life, the most common cause of reddish-orange staining in a diaper is urate crystals, which appear as brick-red or salmon-colored powder. These are concentrated uric acid deposits from normal kidney function and are especially common before a mother's milk fully comes in. They can look alarming but are harmless and typically resolve once the baby is feeding well and producing more dilute urine. Newborn girls may also have a small amount of blood-tinged vaginal discharge (pseudomenstruation) due to withdrawal from maternal estrogen, which is entirely normal. It is generally considered normal when brick-red or orange powder (urate crystals) in the diaper during the first 2-3 days of life in a feeding newborn. However, you should contact your pediatrician promptly if there is a large amount of frank blood in the diaper, the stool looks like currant jelly, or the blood is dark and tarry, as these can indicate a serious condition such as intussusception or internal bleeding.
Normal vs. Concerning
By Age
What to expect by age
0-5 days
In the first few days of life, the most common cause of reddish-orange staining in a diaper is urate crystals, which appear as brick-red or salmon-colored powder. These are concentrated uric acid deposits from normal kidney function and are especially common before a mother's milk fully comes in. They can look alarming but are harmless and typically resolve once the baby is feeding well and producing more dilute urine. Newborn girls may also have a small amount of blood-tinged vaginal discharge (pseudomenstruation) due to withdrawal from maternal estrogen, which is entirely normal.
5 days - 2 weeks
If urate crystals persist beyond the first 3-5 days, it may indicate the baby is not getting enough milk and is becoming dehydrated. Track wet and dirty diapers carefully. By day 4-5, a well-fed newborn should have at least 6 wet diapers and 3-4 stools per day. Blood streaks in the stool at this age could be from swallowed maternal blood during breastfeeding (from cracked nipples) or from a small anal fissure caused by straining.
2 weeks - 3 months
Blood in the stool during this period most commonly comes from a tiny anal fissure (a small tear near the anus) or from cow's milk protein intolerance if the baby is formula-fed or if the breastfeeding mother consumes dairy. Allergic colitis from cow's milk protein is one of the more common causes of blood-streaked stools in otherwise healthy-appearing infants. Your pediatrician may recommend a dietary trial to determine if this is the cause.
3 months+
Blood in the diaper at this age could be from anal fissures, food protein intolerance, or rarely, more serious conditions such as intussusception (a bowel obstruction) or Meckel's diverticulum. Any new onset of blood in the stool, especially if accompanied by vomiting, lethargy, or jelly-like (currant jelly) stools, requires urgent medical evaluation.
What to Tell Your Pediatrician
- Describe when you first noticed i found blood in my newborn's diaper and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if urate crystals persist beyond day 3-4 or your baby is not having enough wet diapers.
- Mention if you notice blood-streaked stools that recur, even if the baby seems otherwise well.
- Bring a list of any questions or observations you want to discuss at the appointment.
What Should You Do?
When to take action
- Brick-red or orange powder (urate crystals) in the diaper during the first 2-3 days of life in a feeding newborn
- A small amount of blood-tinged or mucousy vaginal discharge in a newborn girl during the first 1-2 weeks
- Occasional tiny streak of bright red blood on the surface of a stool from a known anal fissure that your pediatrician has evaluated
- Urate crystals persist beyond day 3-4 or your baby is not having enough wet diapers
- You notice blood-streaked stools that recur, even if the baby seems otherwise well
- Your baby seems fussier than usual or is spitting up more along with blood in the stool
- There is a large amount of frank blood in the diaper, the stool looks like currant jelly, or the blood is dark and tarry, as these can indicate a serious condition such as intussusception or internal bleeding
- Your baby is vomiting, lethargic, refusing feeds, has a distended abdomen, or appears pale along with blood in the diaper
What You Can Do at Home
- Keep track of when you notice i found blood in my newborn's diaper — noting the time of day, duration, and any triggers can help your pediatrician.
- Remember that brick-red or orange powder (urate crystals) in the diaper during the first 2-3 days of life in a feeding newborn — this is generally within the range of normal.
- At 0-5 days, focus on observation rather than intervention unless your pediatrician advises otherwise.
- Follow any care instructions from your pediatrician. Keep a written log of symptoms to bring to appointments.
- While monitoring at home, seek immediate care if there is a large amount of frank blood in the diaper, the stool looks like currant jelly, or the blood is dark and tarry, as these can indicate a serious condition such as intussusception or internal bleeding.
Related Resources
Frequently asked questions
Is i found blood in my newborn's diaper normal?
When should I call the doctor about i found blood in my newborn's diaper?
When is i found blood in my newborn's diaper normal?
What causes i found blood in my newborn's diaper?
What should I mention to my pediatrician about i found blood in my newborn's diaper?
Is i found blood in my newborn's diaper normal at 0-5 days?
Is i found blood in my newborn's diaper normal at 5 days - 2 weeks?
Should I go to the ER for i found blood in my newborn's diaper?
Does i found blood in my newborn's diaper go away on its own?
References
- [1]HealthyChildren.org. Blood in Infant's Stool. AAP
- [2]HealthyChildren.org. Diaper Check: What's Normal and What's Not. AAP
- [3]Mayo Clinic. Blood in Baby's Stool: Causes. Mayo Foundation for Medical Education and Research. Mayo Clinic
Doctor Visit Checklist
Bring this checklist to your next pediatrician visit to discuss I Found Blood in My Newborn's Diaper.
Things to mention
- Describe when you first noticed i found blood in my newborn's diaper and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if urate crystals persist beyond day 3-4 or your baby is not having enough wet diapers.
- Mention if you notice blood-streaked stools that recur, even if the baby seems otherwise well.
- Bring a list of any questions or observations you want to discuss at the appointment.
Observations to share
- Urate crystals persist beyond day 3-4 or your baby is not having enough wet diapers
- You notice blood-streaked stools that recur, even if the baby seems otherwise well
- Your baby seems fussier than usual or is spitting up more along with blood in the stool
Urgent signs to report immediately
- There is a large amount of frank blood in the diaper, the stool looks like currant jelly, or the blood is dark and tarry, as these can indicate a serious condition such as intussusception or internal bleeding
- Your baby is vomiting, lethargic, refusing feeds, has a distended abdomen, or appears pale along with blood in the diaper
My notes
From ismybabyalright.com — free, evidence-based baby health guides
All content follows our editorial policy and is reviewed against published clinical guidelines.
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Bottom line
Most cases of i found blood in my newborn's diaper are normal. Talk to your pediatrician if there is a large amount of frank blood in the diaper, the stool looks like currant jelly, or the blood is dark and tarry, as these can indicate a serious condition such as intussusception or internal bleeding.
Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.
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