Can Anyone Get Sickle Cell Disease? | Who Is At Risk

No. This inherited blood disorder happens only when a child is born with two affected hemoglobin genes.

Sickle cell disease is not something you catch, develop from diet, or pick up later in life. You are born with it. That single fact clears up most of the confusion around who can get sickle cell disease and who cannot.

Still, the short version misses a lot. People from many backgrounds can carry a sickle cell gene. Some have sickle cell trait, not the disease. Some have the disease because they inherited two changed hemoglobin genes. And some families do not know their genetic status until a baby is screened at birth.

This article breaks down what decides risk, how trait differs from disease, and why the condition shows up more often in some populations without being limited to only one race or region.

Can Anyone Get Sickle Cell Disease? What Genetics Decide

The direct answer is no. Not everyone can get sickle cell disease. A person must inherit the gene pattern that causes it. According to the NHLBI’s causes and risk factors page, sickle cell disease happens when a child inherits two hemoglobin gene variants, one from each parent.

That means two things are true at the same time:

• You cannot “turn” a normal blood cell into sickle cell disease through lifestyle or exposure.
• You can be born with either sickle cell disease, sickle cell trait, or neither, based on the genes passed down to you.

The genes involved affect hemoglobin, the protein in red blood cells that carries oxygen. In sickle cell disease, abnormal hemoglobin can make red blood cells hard, sticky, and curved. Those cells do not move through blood vessels as smoothly as usual cells do, which can lead to pain, anemia, and organ damage over time.

Why People Mix Up Trait And Disease

This is where many articles get muddy. Sickle cell trait means a person has one sickle cell gene and one usual hemoglobin gene. Sickle cell disease means a person has two affected genes. Those are not the same thing.

The CDC’s sickle cell trait overview says people with trait usually do not have symptoms of sickle cell disease, though they can pass the gene to their children. So, someone can look healthy, feel healthy, and still carry a gene that matters for future pregnancies.

Who Can Carry The Gene

Anyone with family roots in areas where malaria was common can carry a sickle cell gene. That includes parts of Africa, the Caribbean, South and Central America, the Middle East, India, and the Mediterranean. In the United States, sickle cell disease is often linked with Black families, and that pattern is real, but the disease is not limited to one racial group.

That point matters. Race is a rough clue, not a diagnosis. Genes are what decide the condition.

How A Child Ends Up With Sickle Cell Disease

The condition follows an inherited pattern. A child gets one hemoglobin gene from each parent. When both parents pass down an affected gene, the child may have sickle cell disease. When only one parent passes down that gene, the child may have sickle cell trait.

There are a few ways this can happen. The best-known form is HbSS, which many people call sickle cell anemia. Yet it is not the only type. A child can also inherit one hemoglobin S gene and another altered hemoglobin gene, such as hemoglobin C or beta thalassemia, and still have sickle cell disease.

Simple Family Patterns

These patterns help make the risk easier to see:

• Two parents with sickle cell trait: a child may have sickle cell disease, trait, or neither.
• One parent with trait and one without: a child may have trait, but not sickle cell disease.
• One parent with sickle cell disease and one with trait: a child has a higher chance of having the disease.
• Two parents with sickle cell disease: a child will inherit sickle cell disease.

These are broad patterns. A doctor or genetic counselor can explain the exact odds in a family, but the main point stays the same: the disease starts with inherited genes, not with anything a person did wrong.

What “At Risk” Really Means

People often ask who is “at risk” as if risk means the disease could appear out of nowhere. With sickle cell disease, risk means the chance of being born with the gene combination that causes it, or the chance of passing it on to a child.

That makes family history and carrier status more useful than guesswork. A person may have no symptoms and still carry one sickle cell gene. This is why screening matters in families from higher-prevalence populations and in couples planning a pregnancy.

Newborn screening has also changed how early the disease is found. In many countries, babies are tested soon after birth, which helps families start medical care early.

Who Gets Sickle Cell Disease More Often

Sickle cell disease is more common in certain populations, but “more common” does not mean “only.” The condition is seen most often in people with ancestry from:

• Sub-Saharan Africa
• The Caribbean
• Spanish-speaking regions in the Americas
• India
• Saudi Arabia and nearby parts of the Middle East
• Turkey, Greece, and Italy

Those patterns are tied to inherited protection against severe malaria in carriers of the trait. Over many generations, that helped the gene stay more common in places where malaria was a major threat.

Status Or Background	What It Means	Can The Person Pass On A Sickle Cell Gene?
No sickle cell gene	Usual hemoglobin genes only	No
Sickle cell trait	One sickle cell gene and one usual gene	Yes
HbSS	Two hemoglobin S genes	Yes
HbSC	One hemoglobin S gene and one hemoglobin C gene	Yes
HbS beta thalassemia	One hemoglobin S gene and one beta thalassemia gene	Yes
Family history of trait	Carrier status may run in the family	Possible
Ancestry from malaria-linked regions	Carrier rates are higher in some populations	Possible
Unknown carrier status	Risk cannot be judged by appearance alone	Unknown until tested

Signs That Trait And Disease Are Not The Same

Trait usually causes few or no day-to-day problems. Disease is a lifelong blood disorder that can cause pain episodes, anemia, infections, stroke, and damage to organs. The MedlinePlus genetics page on sickle cell disease explains that the disorder affects hemoglobin and changes red blood cell shape, which is why blood flow and oxygen delivery can be disrupted.

This difference matters in real life. Someone with trait may not know they carry the gene unless a blood test picks it up. Someone with sickle cell disease needs ongoing medical follow-up from childhood onward.

Common Mix-Ups To Avoid

• Myth: Only Black people can get sickle cell disease.
  Fact: It appears in many populations.
• Myth: Trait is the same as mild disease.
  Fact: Trait and disease are different genetic states.
• Myth: You can get sickle cell disease later in life.
  Fact: You are born with it.
• Myth: No family history means no risk.
  Fact: Families may carry the gene without knowing it.

When Testing Makes Sense

Testing makes sense when a person wants to know carrier status, when there is a family history, or when a couple is planning a pregnancy. Many people first learn about sickle cell trait through newborn screening results, sports screening, prenatal testing, or routine blood work.

Testing does not change the genes a person has, but it does clear up uncertainty. That can help families understand pregnancy risk, explain results to relatives, and plan medical care if a child is affected.

Questions People Often Have Before Testing

People usually want straight answers to a few things:

• Do I have the disease or just the trait?
• Could my child inherit sickle cell disease?
• Should my partner be tested too?
• Was my newborn screened already?

Those are practical questions. They are also the ones that make the biggest difference.

Question	Plain Answer	Why It Matters
Can anyone get sickle cell disease?	No, only people born with the needed gene pattern	Clears up the biggest myth
Can anyone carry the gene?	Yes, people from many backgrounds can carry it	Trait is wider than many people think
Can trait turn into disease?	No	Trait and disease are not the same
Can you get it later in life?	No	The disease is inherited at birth
Should families get tested?	Often yes, especially with family history or pregnancy planning	Testing shows carrier status clearly

What The Real Answer Comes Down To

So, can anyone get sickle cell disease? No. A person must be born with the gene combination that causes it. Still, many more people can carry a sickle cell gene than most families realize, and that is why trait testing matters.

If you want the clearest way to think about it, use this rule: sickle cell disease is inherited, sickle cell trait is carried, and both are shaped by genes passed from parent to child. Once that clicks, the whole topic gets a lot easier to understand.