Can AI Analyse a Photo of My Baby's Rash or Nappy?

You've taken the photo. It's blurry, it's 2am, and Google image search is showing you a slideshow of everything from harmless heat rash to meningococcal disease. What if you could just send the photo to a nurse and get a straight answer?

That's exactly what Nurse Lumi does. Here's what she can (and can't) tell you from a photo, and the safety rules behind it.

What Nurse Lumi can analyse

• Baby & toddler rashes — heat rash, eczema, hives, viral rashes, nappy rash, thrush, cradle cap, milk spots.
• Nappy contents — colour, consistency, mucus, blood streaks, black stools, pale stools (compared against the Australian stool colour chart).
• Nappy count — a week's worth of nappies photographed on the change table? Lumi can help you assess hydration.
• Breast milk — colour changes, lipase-affected milk, foremilk vs hindmilk in a pumped bottle.
• Latch positioning — asymmetric latch, shallow latch, tongue positioning where visible.
• Cot setup — Red Nose safe-sleep review from a photo of the cot.
• Clinician documents — paediatrician letters, discharge summaries, growth charts, ultrasound reports, immunisation records — translated into plain English.
• Product labels — infant formula tins, medication boxes, food ingredient lists.

What Lumi will NOT diagnose from a photo

Photos are a triage tool, not a diagnosis. Lumi will never tell you your baby "definitely has" a specific condition. Instead she'll:

1. Describe what she sees.
2. List the most likely causes.
3. Flag any red flags.
4. Tell you whether to relax, see your GP within 24–48 hours, or go straight to emergency.

Rash red flags — the ones every parent should know

Regardless of what any AI tells you, phone 000 or go to emergency immediately if you see:

• Non-blanching rash — spots or bruises that don't fade when you press a glass against them. This is the classic meningococcal warning.
• Rash with fever and drowsiness, stiff neck, or a bulging fontanelle in an infant.
• Swelling of lips, tongue or face with difficulty breathing (anaphylaxis).
• Rapidly spreading rash with fever in a baby under 3 months.

Nappy red flags

• Very pale, chalky, or grey stools (possible liver issue — see GP).
• Currant-jelly stools (blood + mucus, red-purple — possible intussusception — emergency).
• Persistent bright red blood.
• Fewer than 6 wet nappies in 24 hours from a week-old baby, or dramatic drop in output.
• Black stools after the first week of life.

How to take a photo Nurse Lumi can actually read

1. Good light — natural daylight if possible, or turn on all the lights.
2. Fill the frame with the rash or nappy — don't zoom in with your fingers, get closer.
3. Include a reference object for scale (a 20c coin, your finger) for rashes.
4. Take two shots — one wider, one close-up.
5. Wipe the phone camera lens.

What happens to your photos?

Uploads go to a private, encrypted Supabase storage bucket tied to your account. Only you and Nurse Lumi's AI processing can access them. They're not used to train external models, and you can delete them from your child's record any time. Full details on the How Nurse Lumi Works page.

Photo-analysis examples parents use daily

• "Is this eczema or a viral rash?"
• "Is my baby's poo colour normal?" (Lumi cross-checks against the Australian infant stool colour chart.)
• "This is my milk from yesterday's pump — does it look normal?"
• "Is this latch shallow?"
• "Is my cot Red-Nose safe? I've included the whole setup."
• "Here's the paediatrician letter — what does it actually mean?"

What Lumi can NOT do

• Diagnose. Ever.
• Read very blurry photos reliably.
• Replace an in-person examination for anything urgent.
• Assess hearing, vision, cardiac or developmental concerns from a photo.

Related reading: nappy rash causes and care

Related reading: baby warning signs needing care