Orange or Brick Dust in Diaper (Urate Crystals)
Medically reviewed by Dr. Michael Okonkwo, MD, FAAP · Board-Certified Neonatologist
Content reviewed against published AAP, NIH guidelines
Last reviewed:
If your baby has been diagnosed with or you suspect orange or brick dust in diaper (urate crystals), here is what the evidence says.
The short answer
Orange, pink, or reddish-brown spots in a newborn's diaper (called urate crystals or "brick dust") are common in the first few days of life when the baby is getting small amounts of colostrum. They are not blood and are usually harmless. However, if they persist beyond the first few days, it may indicate the baby needs more fluids or calories.
Key takeaways
- Orange, pink, or reddish-brown spots in a newborn's diaper (called urate crystals or "brick dust") are common in the first few days of life when the baby is getting small amounts of colostrum. They are not blood and are usually harmless. However, if they persist beyond the first few days, it may indicate the baby needs more fluids or calories.
- Usually normal when: Orange, pink, or reddish spots in the diaper in the first 2-3 days of life
- Call your doctor if: Persistent urate crystals with poor feeding, weight loss, or fewer than expected wet diapers suggesting inadequate intake and possible dehydration
- Varies by age — see the age-by-age breakdown below
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What Parents Should Know
According to AAP, NIH guidelines, orange, pink, or reddish-brown spots in a newborn's diaper (called urate crystals or "brick dust") are common in the first few days of life when the baby is getting small amounts of colostrum. They are not blood and are usually harmless. However, if they persist beyond the first few days, it may indicate the baby needs more fluids or calories. At 0-1 month, urate crystals appear as salmon, pink, orange, or reddish-brown spots or powder in the diaper. They are concentrated uric acid that is excreted in small amounts of urine. In the first 2-3 days, when colostrum volume is low and baby is learning to breastfeed, this is common and generally not concerning. As milk supply increases and baby feeds more effectively, the urine becomes more dilute and urate crystals disappear. If urate crystals persist beyond day 3-4, it may indicate the baby is not getting enough milk and needs a feeding evaluation. This is an important early sign that should not be ignored. It is generally considered normal when orange, pink, or reddish spots in the diaper in the first 2-3 days of life. However, you should contact your pediatrician promptly if persistent urate crystals with poor feeding, weight loss, or fewer than expected wet diapers suggesting inadequate intake and possible dehydration.
Normal vs. Concerning
By Age
What to expect by age
0-1 month
Urate crystals appear as salmon, pink, orange, or reddish-brown spots or powder in the diaper. They are concentrated uric acid that is excreted in small amounts of urine. In the first 2-3 days, when colostrum volume is low and baby is learning to breastfeed, this is common and generally not concerning. As milk supply increases and baby feeds more effectively, the urine becomes more dilute and urate crystals disappear. If urate crystals persist beyond day 3-4, it may indicate the baby is not getting enough milk and needs a feeding evaluation. This is an important early sign that should not be ignored.
1-3 months
Urate crystals should not be present once feeding is well established. If you see orange or pink staining in the diaper at this age, it could indicate dehydration from illness, inadequate feeding, or rarely, a metabolic condition. Contact your pediatrician.
3-6 months
Urate crystals at this age are unusual and warrant evaluation. Ensure adequate fluid intake through breast milk or formula.
6-12 months
Orange diaper staining at this age is not normal for healthy babies getting adequate fluids. Discuss with your pediatrician.
What to Tell Your Pediatrician
- Describe when you first noticed orange or brick dust in diaper (urate crystals) 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.
- Mention if you are unsure whether the staining is urate crystals or blood.
- Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
- Bring a list of any questions or observations you want to discuss at the appointment.
What Should You Do?
When to take action
- Orange, pink, or reddish spots in the diaper in the first 2-3 days of life
- Crystals that disappear as milk supply increases and baby feeds more
- No other symptoms and baby is otherwise well
- Urate crystals persist beyond day 3-4
- You are unsure whether the staining is urate crystals or blood
- Baby also seems excessively sleepy or not feeding well
- Persistent urate crystals with poor feeding, weight loss, or fewer than expected wet diapers suggesting inadequate intake and possible dehydration
- Frank blood in the diaper (which looks different from urate crystals and requires evaluation)
What You Can Do at Home
- Keep track of when you notice orange or brick dust in diaper (urate crystals) — noting the time of day, duration, and any triggers can help your pediatrician.
- Remember that orange, pink, or reddish spots in the diaper in the first 2-3 days of life — this is generally within the range of normal.
- At 0-1 month, 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 persistent urate crystals with poor feeding, weight loss, or fewer than expected wet diapers suggesting inadequate intake and possible dehydration.
Related Conditions
How Many Wet Diapers Are Enough
In the first few days, expect at least one wet diaper per day of life (1 on day 1, 2 on day 2, etc.). By day 4-5, your baby should have at least 6 wet diapers per day. This is one of the best indicators that your baby is getting enough milk. Modern diapers are very absorbent, so check by feeling the weight of the diaper.
Normal Weight Loss After Birth
It is completely normal for newborns to lose weight in the first few days of life. Breastfed babies typically lose 5-7% of their birth weight, and formula-fed babies typically lose 3-5%. Weight loss of more than 7-10% may need intervention. Most babies regain their birth weight by 10-14 days of age.
I Found Blood in My Newborn's Diaper
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.
Related Resources
Frequently asked questions
Is orange or brick dust in diaper (urate crystals) normal?
When should I call the doctor about orange or brick dust in diaper (urate crystals)?
When is orange or brick dust in diaper (urate crystals) normal?
What causes orange or brick dust in diaper (urate crystals)?
What should I mention to my pediatrician about orange or brick dust in diaper (urate crystals)?
Is orange or brick dust in diaper (urate crystals) normal at 0-1 month?
Is orange or brick dust in diaper (urate crystals) normal at 1-3 months?
Should I go to the ER for orange or brick dust in diaper (urate crystals)?
Does orange or brick dust in diaper (urate crystals) go away on its own?
References
Doctor Visit Checklist
Bring this checklist to your next pediatrician visit to discuss Orange or Brick Dust in Diaper (Urate Crystals).
Things to mention
- Describe when you first noticed orange or brick dust in diaper (urate crystals) 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.
- Mention if you are unsure whether the staining is urate crystals or blood.
- Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
- 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
- You are unsure whether the staining is urate crystals or blood
- Baby also seems excessively sleepy or not feeding well
Urgent signs to report immediately
- Persistent urate crystals with poor feeding, weight loss, or fewer than expected wet diapers suggesting inadequate intake and possible dehydration
- Frank blood in the diaper (which looks different from urate crystals and requires evaluation)
My notes
From ismybabyalright.com — free, evidence-based baby health guides
All content follows our editorial policy and is reviewed against published clinical guidelines.
2,705 evidence-based guides6 authoritative medical sources5 medical advisory board members
Related Resources
Bottom line
Most cases of orange or brick dust in diaper (urate crystals) are normal. Talk to your pediatrician if persistent urate crystals with poor feeding, weight loss, or fewer than expected wet diapers suggesting inadequate intake and possible dehydration.
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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Related Medical Concerns
How Many Wet Diapers Are Enough
In the first few days, expect at least one wet diaper per day of life (1 on day 1, 2 on day 2, etc.). By day 4-5, your baby should have at least 6 wet diapers per day. This is one of the best indicators that your baby is getting enough milk. Modern diapers are very absorbent, so check by feeling the weight of the diaper.
Normal Weight Loss After Birth
It is completely normal for newborns to lose weight in the first few days of life. Breastfed babies typically lose 5-7% of their birth weight, and formula-fed babies typically lose 3-5%. Weight loss of more than 7-10% may need intervention. Most babies regain their birth weight by 10-14 days of age.
I Found Blood in My Newborn's Diaper
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.
My Baby's Head Shape Looks Abnormal
Many babies develop temporary head shape irregularities that are completely normal. A cone-shaped head from vaginal delivery reshapes within days. Mild positional flattening (plagiocephaly) from sleeping on the back is very common and usually improves with repositioning and tummy time. However, head shape changes involving ridges, a persistently bulging fontanelle, or rapid head growth changes should be evaluated to rule out craniosynostosis.
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Adenoid Hypertrophy and Breathing
Adenoids are lymphoid tissue located behind the nose that help fight infection in young children. When adenoids become enlarged (adenoid hypertrophy), they can block the nasal airway, causing chronic mouth breathing, snoring, nasal speech, and sleep-disordered breathing. Enlarged adenoids are most common between ages 2-7 and are a leading cause of obstructive sleep apnea in young children. Treatment ranges from watchful waiting and nasal steroids to surgical removal (adenoidectomy) if breathing or sleep is significantly affected.