Newborn Blood Spot Screening: England's Test and Results
What is newborn blood spot screening?
Newborn blood spot screening uses blood collected from a baby's heel to look for rare, serious conditions. In England, the routine sample is taken on day 5, counting birth as day 0. Screening can identify babies who need further tests; it does not diagnose them. Your baby's clinician interprets their results. Seek medical help for an unwell baby rather than awaiting results. These distinctions follow England's screening pathway.
When should you get urgent help?
In England, call 999 or go to A&E if your baby:
- Is breathing very fast or having difficulty breathing.
- Is difficult to wake or cannot be woken.
- Is having a seizure.
- Is under 3 months old and has a temperature of 38C or higher.
- Has a rash that does not fade when pressed.
These are selected examples from the NHS emergency list, not the full list. Get immediate medical help if your baby is unwell and you think something is seriously wrong. In England, call NHS 111 for worrying symptoms or uncertainty about what to do.
If you are worried about your baby right now, you do not need a reason that satisfies anyone. Call your pediatrician, your local out-of-hours service, or your emergency number. Trusting your instinct is the correct response.
Which country's screening programme does this describe?
This guide explains England's programme. It does not give a worldwide timetable. England's parent information leaflet specifically warns that a second sample taken in another country will be screened for the conditions offered there, which may differ from England's list.
Ask your own maternity or child-health team which programme applies to your baby, especially if care moves between countries. This page explains general guidance; your clinician, who knows your baby's history, decides what an appointment, repeat sample or result means for them.
As a mother of three, I want the practical questions answered plainly: what is this appointment, who sends the result, and what happens next? You do not need to learn every medical abbreviation before asking those questions. For the wider first-weeks context, see our newborn reference.
What conditions does England screen for?
The NHS England programme overview lists 10 conditions. These are the names you may see in the information offered with screening:
| Condition | Abbreviation |
|---|---|
| Sickle cell disease | SCD |
| Cystic fibrosis | CF |
| Congenital hypothyroidism | CHT |
| Phenylketonuria | PKU |
| Medium-chain acyl-CoA dehydrogenase deficiency | MCADD |
| Maple syrup urine disease | MSUD |
| Isovaleric acidaemia | IVA |
| Glutaric aciduria type 1 | GA1 |
| Homocystinuria | HCU |
| Hereditary tyrosinaemia type 1 | HT1 |
The last 7 are inherited metabolic diseases. England's parent leaflet specifies the pyridoxine-unresponsive form of homocystinuria. The leaflet explains that babies with inherited metabolic diseases cannot process certain substances in food, and some can become seriously ill without treatment. It describes early identification as a way to improve health and prevent severe disability or death. This is the reason screening is offered early, rather than waiting for a parent to identify a condition. See the condition descriptions.
Tell your healthcare professional straight away if either parent or another family member has one of the screened conditions. The care pathway includes recording relevant family history and arranging additional early screening when required. The care team decides whether that applies.
Why is the routine test on day 5?
In England, the day of birth is day 0. The professional handbook explains that day 5 balances testing too early, which can affect the congenital hypothyroidism test's accuracy, against testing too late for prompt referral and treatment.
That explains the routine appointment; it is not a reason to rearrange a different appointment your team has specifically made. The NHS says the test can sometimes happen earlier or later. If it has not happened, tell your midwife, health visitor or GP so they can establish what your baby needs. The NHS parent page gives that route.
For your own notes, record the actual sample date and the service that took it. Keep a question about an absent sample separate from a question about a result: "Was the sample taken?" and "Have the results arrived?" ask about different parts of the process.
Do parents give consent for screening?
Yes. England's programme overview says parents are asked for verbal consent. Screening is recommended, and the professional should explain the offer. The programme provides information in different languages and easy-read formats; ask for information you can use rather than agreeing to wording you do not understand.
The parent leaflet explains that sickle cell disease, cystic fibrosis and congenital hypothyroidism can be chosen individually, while the inherited metabolic diseases are tested together. Discuss questions or concerns with your midwife. Your decision should follow an explanation of what the test includes.
What happens during the heel-prick test?
The NHS describes a healthcare professional using a small needle device on the baby's heel and collecting drops onto a special card. The card goes away for testing. The appointment is usually at home, although it may be in hospital or another planned setting.
The baby may cry or be uncomfortable. The NHS says no special preparation is needed and describes feeding, cuddling and keeping the baby warm and comfortable as ways to help calm them. Ask the professional how you can help during your baby's test. These details come from the NHS description of the procedure.
What does a request for another sample mean?
A repeat request is not, by itself, a diagnosis. The screening care pathway includes requesting another sample when the first is not of sufficient quality. It also separates positive results from borderline, inconclusive and carrier results, which follow their own condition-specific pathways.
England's parent leaflet says the reason for a second sample will be explained and that it does not necessarily mean something is wrong. Ask which reason applies to your baby's request and when the team wants the sample taken. Do not infer the answer from another family's experience of a repeat test.
A useful written question is: "Is this a sample-quality issue, a result that needs clarifying, or a specialist follow-up?" Let the team explain their actual request rather than trying to interpret the phrase "repeat test" on its own.
What do the result words mean?
England's parent guidance on results distinguishes these situations:
| Wording or finding | What it means for follow-up |
|---|---|
| Condition not suspected | Most babies receive this screening outcome. Results should still reach you and be recorded. |
| Condition suspected | This does not establish a diagnosis. A professional contacts you, explains the finding and refers your baby for specialist tests and treatment if needed. |
| Carrier finding | Screening can identify some carriers of cystic fibrosis, sickle cell disease or another red blood cell condition. A professional or letter explains the result; further tests may be needed. |
Carrier status is different from having the condition. The parent guidance also notes rare situations in which carriers may have health problems when their bodies receive insufficient oxygen. Avoid turning the word "carrier" into a blanket promise about health; ask the professional what the particular finding means. Screening does not identify every carrier.
The professional handbook acknowledges both false positive and false negative results. A positive screen can occur in a baby without that condition; screening can also miss a condition. A result cannot replace assessment when your baby becomes unwell. For a separate question about feeding patterns, our newborn feeding guide explains the usual pattern and routing to help.
When should the results arrive?
For routine screening in England, results showing no suspected condition should reach you by 6 weeks after birth. Suspected findings are communicated as soon as available, according to the screening handbook. The parent leaflet says some follow-up tests need to happen quickly: respond to contact from the specialist team rather than waiting for a routine results letter.
The care pathway makes the health visitor responsible for checking that results have reached parents and been entered in the personal child health record, often called the red book. If you have no results by 6 weeks, the NHS says to speak to your midwife, health visitor or GP.
Keep the result alongside your baby's other records and bring the red book to further appointments, as the parent leaflet advises. Our first-year milestones reference covers a different part of follow-up: development and when to raise concerns. Blood spot results and developmental assessment answer different questions.
Sources
All sources opened and checked on 13 September 2026. This article describes England's programme.
- NHS: Newborn blood spot test. Page reviewed 5 September 2024; procedure, comfort, missed-test contact and missing-results contact.
- NHS: When to get urgent medical help for babies and children under 5. Reviewed 6 August 2026; selected emergency signs and NHS 111 routing.
- NHS England: Blood spot parent information. Updated 3 June 2026; country differences, condition scope, repeat tests, result meanings and specialist contact.
- NHS England: Newborn blood spot screening programme overview. Updated 26 September 2025; current list of 10 screened conditions.
- NHS England: Screening pathway handbook. Updated 29 September 2025; day-5 rationale, screening limitations and result timing.
- Public Health England: Newborn blood spot screening care pathway. Updated 3 February 2021; family history, sample quality, referral routes and result recording.
Parents also ask
Does a repeat newborn blood spot test mean something is wrong?
Not necessarily. England's screening pathway includes repeat samples when the first sample is not of sufficient quality. Other results may need their own follow-up. Ask the team why your baby's repeat has been requested and when it should happen; the phrase 'repeat test' alone does not establish a diagnosis.
When should newborn blood spot results arrive in England?
For routine screening, results showing no suspected condition should reach parents by 6 weeks after birth. Suspected findings are communicated as soon as available, and some specialist tests need to happen quickly. Respond to the team's contact. If you have no results by 6 weeks, speak to your midwife, health visitor or GP.
Does 'condition suspected' mean my baby has that condition?
It is a screening finding, not a confirmed diagnosis. England's parent guidance says a professional will explain the finding and refer your baby to a specialist for further tests and treatment if needed. Follow the team's instructions, and ask them to explain the next step for your baby.
Does a normal screening result rule out illness?
No. England's screening handbook acknowledges false negative results, so screening can miss a condition. The blood spot test checks a defined set of conditions, not every cause of illness. If your baby is unwell, seek medical help on that basis rather than relying on a previous result or waiting for the next appointment.
Is newborn blood spot screening the same in every country?
This guide describes England's programme. Its parent leaflet says that if a second sample is taken in another country, it is screened for that country's offered conditions, which may differ. Ask your own care team which programme applies and how screening records will be shared when care moves between countries.
Independent guidance, not medical advice. We do not diagnose or recommend treatments or doses. For any concern about your baby, contact your pediatrician or local emergency service.
