The quickest way to find a sickle cell test near you is to ask your primary care doctor, pediatrician, or prenatal clinic to order one. It is a simple blood draw that almost any hospital or commercial laboratory can collect, and the sample is then analyzed by a lab that runs hemoglobin testing. This guide explains which test to ask for, where to get it, what the results mean, and what happens next.
What a Sickle Cell Test Looks For
Sickle cell disease (SCD) is an inherited condition in which red blood cells contain an abnormal hemoglobin called hemoglobin S. Normal red blood cells are soft, flexible discs. When hemoglobin S releases its oxygen, it stiffens and bends the cell into a crescent or sickle shape, which blocks small vessels and breaks down early.
The change comes from a single mutation in the HBB gene, which carries instructions for beta-globin. A person who inherits two altered copies has sickle cell disease. A person who inherits one has sickle cell trait, which usually causes no symptoms but can be passed to children. You can read more about the origins of sickle cell disease and why it is more common in people with ancestry from Africa, the Mediterranean, the Middle East, and India.
Types of Sickle Cell Tests
Not every “sickle test” gives the same information, so it helps to know what to ask for. Our detailed guide to sickle cell testing covers the lab methods in depth.
| Test | What it tells you | Limitations |
|---|---|---|
| Sickle solubility test | Whether any hemoglobin S is present | Screening only; cannot tell trait from disease and is unreliable in young infants |
| Hemoglobin electrophoresis, HPLC, or isoelectric focusing | The type and proportion of each hemoglobin (A, S, C, F, and others) | Recent blood transfusion can mask the true result |
| DNA (genetic) testing | The exact HBB gene changes | Used for unclear results, prenatal diagnosis, and family planning |
| Newborn screening | Hemoglobin pattern from a heel-prick blood spot | Positive screens need a confirmatory test |
For most adults and children, the test to request is hemoglobin electrophoresis or its equivalent, sometimes listed on lab forms as a “hemoglobinopathy evaluation.” Unlike the solubility test, it distinguishes sickle cell trait from sickle cell disease.
Where to Find a Sickle Cell Test Near You
Testing is widely available, but the route depends on your situation.
- Your primary care doctor: the simplest option. They can order the test, and blood is drawn at the clinic or a nearby laboratory collection center.
- Pediatricians: can confirm or repeat newborn screening results and arrange follow-up.
- Prenatal and fertility clinics: many offer carrier testing to people who are pregnant or planning a pregnancy, often for both partners.
- Hematology clinics and sickle cell centers: the right place if a result is abnormal or unclear. They offer specialist interpretation and long-term care.
- Hospital and commercial laboratories: some accept self-referral or have a patient-ordered testing service, depending on local rules.
- Community screening events: patient foundations and health departments sometimes run free or low-cost carrier screening.
Newborn Screening
Many countries, including the United States and the United Kingdom, test all newborns for sickle cell disease through routine heel-prick screening. If you were born in one of these countries, a result may already exist. Your birth hospital or local health department may be able to help you find it.
Who Should Consider Testing
Testing is worthwhile for anyone who does not know their status and has a relative with sickle cell disease or trait. It is also recommended for couples planning a pregnancy when either partner has ancestry from a region where the gene is common, and for athletes or military recruits whose programs ask for it.
Children with unexplained anemia, repeated episodes of hand or foot swelling, or pain crises should be tested even if newborn screening was reported as normal. Records can be lost, and a repeat test is simple and inexpensive.
Tips Before Your Test
- No fasting or special preparation is needed.
- Tell the lab if you have had a blood transfusion in the past few months, because donor blood can hide your own hemoglobin pattern.
- Check with your insurer or clinic about cost and coverage in advance.
- Ask how and when you will receive results, and who will explain them.
Understanding Your Results
| Result pattern | Meaning |
|---|---|
| HbAA | Normal adult hemoglobin; no sickle gene |
| HbAS | Sickle cell trait (carrier) |
| HbSS | Sickle cell anemia, the most common and often most severe form |
| HbSC | Hemoglobin SC disease, usually milder |
| HbS/beta-thalassemia | Sickle cell disease combined with a thalassemia gene; severity varies |
If both parents carry sickle cell trait, each pregnancy has a one-in-four chance of a child with sickle cell disease. This is why carrier testing for both partners matters before or early in pregnancy. Prenatal diagnosis is possible through chorionic villus sampling or amniocentesis.
What Happens After a Positive Test
A diagnosis of sickle cell disease should lead to referral to a hematologist or comprehensive sickle cell center. Early, organized care is what makes the biggest difference to long-term health and life expectancy in sickle cell disease.
- Infection prevention: daily penicillin in young children and a full vaccination schedule.
- Hydroxyurea: raises fetal hemoglobin and reduces pain crises and acute chest syndrome.
- Screening: transcranial Doppler scans in children to detect stroke risk.
- Transfusions for specific complications.
- Curative options: a bone marrow (stem cell) transplant, and newer gene therapies approved in some countries for selected patients.
A sickle cell trait result usually needs no treatment. It is still useful to know for family planning and for staying well hydrated during intense exercise or at high altitude.
When to See a Doctor
Ask for testing if you have a family history of sickle cell disease or trait, are planning a pregnancy, or do not know your status and have ancestry from a region where the gene is common. Seek urgent care if someone with known sickle cell disease has a fever, severe pain, chest pain, breathing difficulty, sudden weakness, or trouble speaking.
Frequently Asked Questions
How long do sickle cell test results take?
A solubility screen can be done within a day. Hemoglobin electrophoresis or HPLC results usually come back within a few days, and genetic testing takes longer.
Can I get a sickle cell test without a doctor’s order?
In some areas, commercial laboratories offer patient-ordered testing, and community screening events do not require a referral. Going through a doctor is still best, because they can interpret the result and arrange follow-up.
Is a sickle cell test the same as a genetic test?
Not always. Standard tests look at the hemoglobin proteins in your blood, while genetic testing reads the HBB gene itself. Protein testing is enough for most people; DNA testing is used for unclear results and prenatal diagnosis.
Can adults have sickle cell disease without knowing it?
Milder forms such as HbSC disease are sometimes diagnosed only in adulthood. Many adults with sickle cell trait also do not know their status, which is why testing before pregnancy is worthwhile.
