Is BMAC the Same as PRP?

Patients often arrive at Solutions Regenerative Medicine having heard about both PRP and BMAC and wondering whether they are the same thing. They are not. PRP and BMAC are both regenerative treatments made from your own tissue, and both aim to support the body’s own healing response, but they come from different sources, carry different biological components, and are chosen for different clinical situations.

Dr. Mareshah Dunning uses both PRP and BMAC in Gilbert, Arizona and the greater Phoenix area of Arizona, along with other regenerative options like prolotherapy, A2M, micronized fat, and donor tissue. This article walks through the actual similarities and differences between PRP and BMAC so patients can understand what each one is, when each one fits, and why the two are often sequenced together rather than chosen as either/or.

What Is PRP and What Is BMAC?

PRP and BMAC are both autologous concentrates. That means they are made from your own tissue, prepared during the same visit, and returned to you as an injection. The difference is where they come from and what is in them.

PRP (Platelet-Rich Plasma)

PRP is drawn from your blood, similar to a routine blood draw but with a larger volume collected. The blood is drawn into tubes with a citrate based anticoagulant, then spun in an office centrifuge that separates the platelet rich plasma layer from the red blood cells. The platelet rich layer is drawn off and injected into the injured joint, tendon, or ligament under image guidance. Platelets carry a rich supply of growth factors that support tissue healing, and PRP is typically the entry point for tendon injuries, mild to moderate joint pain, and many soft tissue conditions. At SRM, PRP is prepared using a closed system processing device.

BMAC (Bone Marrow Aspirate Concentrate)

BMAC is drawn from your bone marrow, typically from the back of the pelvis (posterior iliac crest) under local numbing. The aspirate is collected in a syringe with heparin as the anticoagulant, which preserves cell function better than the citrate anticoagulants typically used for PRP. The aspirate is then processed onsite in the office using a closed system dual spin concentrator that separates and concentrates the buffy coat layer where the active marrow components sit. The concentrate is drawn off and injected into the target area under ultrasound or fluoroscopy guidance. Bone marrow is the tissue where your body naturally makes the cells and signals it uses to heal itself. It contains growth factors and stem cell populations along with other components a blood based treatment cannot deliver.

How Are PRP and BMAC Similar?

Both PRP and BMAC share several important features that distinguish them from medications like anti inflammatories or corticosteroids.

• Both are autologous, made from your own tissue and prepared and injected during the same office visit.
• Both work with the body’s own healing pathways rather than suppressing symptoms.
• Both are delivered under real time image guidance for precision.
• Both contain platelets and growth factors, since bone marrow itself produces platelets, so BMAC shares part of the biological payload of PRP.
• Both can act as a temporary scaffold at the injection site, the platelets in either preparation form a fibrin matrix that supports cell attachment and early healing before being resorbed as the tissue remodels.
• Both have favorable safety profiles across published clinical use, with adverse events dominated by short lived soreness at the injection site.

How Are PRP and BMAC Different?

The key difference is what BMAC adds on top of what PRP delivers. Bone marrow is the tissue where your body naturally sources the signaling cells and blood forming cells it uses to support tissue repair, so BMAC draws on a richer biological reserve than blood alone and carries components that PRP does not.

• Signaling cells the body naturally uses for repair: bone marrow naturally sources two coexisting stem cell populations (hematopoietic stem cells and mesenchymal stem cells) as part of its normal biological function. BMAC draws on this natural reservoir and delivers those cells alongside the platelets and growth factors that overlap with PRP. PRP does not carry these cell populations at meaningful therapeutic levels because blood is not the tissue that houses them.
• Bone marrow specific signaling molecules: BMAC carries bone morphogenetic protein 2 (BMP-2), which drives new bone formation and is the mechanistic basis for BMAC’s role in non healing fractures and avascular necrosis, and stromal cell derived factor 1 alpha (SDF-1α), which recruits additional circulating stem cells to the injured area. Neither is present at meaningful levels in blood, which is why PRP does not deliver them.
• Anti inflammatory profile: BMAC carries a substantially higher concentration of interleukin 1 receptor antagonist (IL-1Ra), a natural blocker of the inflammation that drives cartilage breakdown, than any form of PRP. This is one reason BMAC has a distinct role in inflammatory joint conditions.
• Immune cell handling: SRM’s PRP is prepared with a closed system that removes inflammation driving neutrophils while retaining the monocytes that contribute to anti inflammatory signaling. BMAC naturally carries its own mix of marrow immune cells that contribute additional anti inflammatory signaling.
• Harvest experience: PRP is a blood draw from the arm; BMAC is a bone marrow aspiration from the back of the pelvis under local numbing. Most patients describe the BMAC harvest as a deep pressure or pulling sensation rather than a sharp pain.
• Cost: BMAC typically costs more than PRP because of the harvest technique, the processing equipment, the clinical time and expertise involved, and the higher tier of treatment BMAC represents in the regenerative injection ladder.
• Recovery: both procedures have a similar aftercare profile of one to three days of mild soreness that can extend up to seven to ten days for some patients.

Quick Comparison: PRP vs BMAC at a Glance

The table below summarizes the key practical and biological differences between PRP and BMAC as prepared at Solutions Regenerative Medicine.

When Would I Choose PRP vs BMAC?

At Solutions Regenerative Medicine, the decision is usually not framed as PRP versus BMAC directly. Regenerative injections work along a therapeutic tier, and PRP typically sits at the mid tier while BMAC is an uplevel option that draws on the stem cell populations naturally present in bone marrow. The real question is less which one to choose than when it makes clinical sense to uplevel to BMAC. BMAC becomes the preferred choice when the clinical picture calls for a more robust regenerative response than PRP alone can deliver, when the injury benefits from going to the source cells the body uses for tissue repair, when the bone side of the injury is part of the picture, or when a mid tier option like PRP has been tried without enough benefit. PRP remains a strong entry point for tendon injuries, ligament injuries, and mild to moderate joint pain, especially when the biology of the injury is well matched to what platelets and growth factors can support.

The decision starts with a full evaluation, a review of your history and imaging, and often a diagnostic injection sequence that helps confirm the true pain generator. Because BMAC takes months to reach its full effect, confirming the diagnosis up front matters so the treatment is delivered where it will do the most good. From there, Dr. Dunning works up the therapeutic order based on the tissue, the stage of the injury, the patient’s goals, and prior treatment response, choosing the intervention that fits the biology in front of her and integrating the injection into a broader naturopathic and interventional plan.