When your baby is born, something remarkable is left behind — cord blood, the blood that remains in the umbilical cord and placenta. Many parents may not realize that this cord blood is a rich source of stem cells that can help treat a variety of serious health conditions, including certain cancers, blood disorders, and immune system diseases.

Cord blood contains hematopoietic stem cells, which are the building blocks of blood and immune cells. These remarkable cells can repair damaged tissues, address genetic disorders, and help combat serious illnesses such as leukemia and lymphoma. What's more, cord blood stem cells can often be used when a bone marrow match isn't available — a crucial advantage for children and families from ethnically diverse backgrounds who may have difficulty finding suitable bone marrow donors.

One reason cord blood is gaining attention in pediatric care is because collecting it is safe and simple. It’s a painless, non-invasive process done right after birth, with no risk to mom or baby. And unlike bone marrow donation, cord blood is immediately available when needed, without waiting for a donor match.

Cord blood stem cells are also less likely to be rejected by the recipient’s immune system, making them a safer choice for many transplants. These qualities make cord blood a valuable medical resource — not only for the baby it came from, but potentially for siblings or other patients in need.

How Cord Blood Is Used to Treat Childhood Illnesses

Cord blood stem cells are used in stem cell transplants to replace or repair damaged bone marrow in children facing specific illnesses. For families without a compatible bone marrow donor or in cases where treatment needs to happen quickly, cord blood can be a lifesaving option.

Cord blood is often easier to access than bone marrow. It’s readily stored in public and private banks and doesn’t require a perfect match, which makes it especially useful for patients from diverse ethnic backgrounds. 

A Southlake pediatrician may recommend considering this option for its accessibility and potential benefits. For families who choose to store their own child’s cord blood, it becomes a 100% genetic match, meaning it can be safely used if needed in the future.

Another benefit? Lower risk of graft-versus-host disease (GvHD) — a serious complication where the donor cells attack the patient’s body — is often seen with cord blood, making it a safer option for many children.

Pediatric Diseases That Can Be Treated with Cord Blood Stem Cells

Blood Disorders

Cord blood is becoming a powerful treatment option for children with inherited blood disorders such as sickle cell anemia, Fanconi anemia, and thalassemia. These conditions interfere with the body’s ability to produce healthy red blood cells, often resulting in chronic fatigue, frequent infections, and potential damage to organs.

Through hematopoietic stem cell transplantation, the healthy cells in cord blood can replace the damaged or faulty bone marrow and restore normal blood function. This gives children a chance at long-term recovery, especially when conventional treatments are no longer effective. 

Southlake doctors are increasingly recommending cord blood as a safe and effective option for children with genetic blood disorders, offering families new hope and life-changing outcomes.

Childhood Cancers

Cord blood has emerged as a valuable tool in the fight against pediatric cancers, especially leukemia and lymphoma. These cancers often require aggressive treatments like chemotherapy and radiation, which can destroy healthy bone marrow along with cancer cells.

After treatment, cord blood stem cells are infused to rebuild the child’s immune and blood systems, allowing the body to recover and defend itself once more. Because cord blood is cryopreserved and readily available, it’s an ideal option when timing is critical. A pediatrician Southlake expert that families trust, may recommend cord blood therapy when rapid access to stem cells is essential for recovery.

Additionally, it doesn’t require a perfect donor match, making it a viable choice for children from diverse ethnic backgrounds. Its lower risk of causing graft-versus-host disease adds to its safety profile. For families facing a cancer diagnosis, cord blood can provide a fast, effective option that supports long-term healing, giving children a greater chance at remission and recovery.

Metabolic Diseases

Some rare childhood illnesses are caused by metabolic disorders—genetic conditions in which the body can’t properly break down certain substances. One of the most recognized is adrenoleukodystrophy (ALD), a condition that can severely affect the brain and nervous system. 

Cord blood transplants offer hope for children diagnosed with these disorders by replacing the damaged cells with healthy ones that can correct enzyme deficiencies. If performed early, before symptoms progress, a cord blood transplant can halt disease development and dramatically improve outcomes. 

These stem cells begin producing the needed enzymes or correcting the underlying dysfunction, preventing long-term complications. Because cord blood is often stored and available quickly, it allows treatment to begin sooner—crucial in rapidly progressing conditions. A Southlake pediatric clinic may discuss cord blood as a valuable option for families facing rare diagnoses, where early detection and timely intervention are essential.

Immune System Disorders

Children born with immune system deficiencies, like Severe Combined Immunodeficiency (SCID), are highly vulnerable to infections that most people can fight off easily. In such cases, cord blood can be a lifesaving treatment. Its rich stem cells can rebuild the child’s immune defenses by generating new, healthy immune cells. This gives the child a functioning immune system and the ability to live a normal life. 

Cord blood is especially useful for immune disorders because it’s readily available, making it an ideal option for children who can’t wait for a bone marrow donor match. At Kidsville Pediatrics, we recognize its value in providing quicker access to treatment and lowering the risk of graft-versus-host disease, a serious complication that can affect recovery. 

Many children treated with cord blood go on to thrive—returning to school, playing with friends, and enjoying the healthy childhood every family hopes for. This powerful option has transformed what once felt like a grim diagnosis into a hopeful, healing path forward.

How Cord Blood Is Collected and Stored

Collecting cord blood is a quick, safe, and painless procedure performed immediately after a baby’s birth. Once the umbilical cord is clamped and cut, a healthcare provider inserts a sterile needle into the cord to draw out the remaining blood. This rich, stem cell-filled blood is collected into a sterile bag. The entire procedure takes just a few minutes and doesn’t interfere with the birthing experience. Typically, about half a cup to one cup of cord blood is gathered.

After collection, the blood is sent to a certified cord blood bank for processing. There, it’s carefully tested, separated, and frozen using advanced cryopreservation methods in liquid nitrogen to preserve the stem cells for long-term use—potentially for decades. Families can choose between public banks, which store donations for general use at no cost, or private banks, which charge a fee to reserve the cord blood specifically for the family’s future medical needs.

Real Pediatric Cases Where Cord Blood Made a Difference

Cord blood transplantation began in 1988 when it successfully treated a child with Fanconi anemia. This groundbreaking event sparked global interest in using cord blood and related tissues for medical treatments. By the early 1990s, larger clinical trials confirmed that cord blood could be a reliable source of stem cells for transplant. Since then, its use has grown rapidly. 

Today, the FDA recognizes cord blood for treating over 80 conditions, including blood disorders and childhood cancers. It’s often preferred for pediatric transplants due to easier availability, reduced infection risk, and lower chances of graft-versus-host disease compared to bone marrow.