Why safety questions matter before any stem cell treatment
Stem cell therapy is a medical procedure, not a wellness package. In Thailand you will see a wide range of offers — from hospital-based programs to loosely regulated clinics. The safest starting point is to slow down, ask for documentation in writing, and have a qualified doctor review your case before any payment.
This guide lists the specific safety questions to ask, and what an acceptable answer looks like.
Cell source: where do the cells come from?
Ask for a clear, written answer to these:
- Are the cells autologous (from you) or allogeneic (from a donor)?
- If allogeneic, what is the tissue source — umbilical cord, placenta, adipose, bone marrow?
- Which laboratory processed the cells, and is that lab named on the paperwork?
- Is the product classified as cells, exosomes, or something else? These are not the same and should never be marketed interchangeably.
A clinic that cannot answer these clearly, in writing, is a red flag.
Donor screening (for allogeneic products)
For any donor-derived product, ask for evidence of donor screening. At minimum this includes serology for HIV, hepatitis B, hepatitis C, and syphilis, plus documented consent and eligibility review. Missing donor screening is not a paperwork issue — it is a patient safety issue.
Sterility, mycoplasma, and endotoxin
Any cell product administered to a patient should be tested for contamination. Ask specifically for:
- Sterility test result (bacterial and fungal)
- Mycoplasma test result
- Endotoxin level, with the unit reported
If the clinic cannot show these reports for your specific batch, do not proceed.
Viability and cell count
Viability tells you how many cells were alive at release. Cell count without viability is close to meaningless. A responsible report shows both, along with the method used and the release date. Higher cell numbers do not automatically mean a better outcome — quality and identity matter more than volume.
Marker verification and identity
For mesenchymal stem cells (MSC), international consensus expects positive markers (such as CD73, CD90, CD105) and negative markers (such as CD45, CD34, CD14, CD11b, CD79alpha, CD19, HLA-DR). Ask for the flow cytometry report. Marker verification confirms that what is being infused is actually what is claimed.
Storage and transport
Cells are fragile. Ask how the product is stored and transported to the point of administration, what the temperature log looks like, and how much time passes between thaw and infusion. Any interruption in the cold chain is a safety concern.
Doctor-led suitability review
Finally — and most importantly — insist on a doctor review of your medical history, current medications, imaging, and lab work before any procedure is planned. A program that skips this step, or offers a fixed package to every patient regardless of history, is not practicing responsible medicine.
Frequently asked questions
Is stem cell therapy legal in Thailand?
Cell-based therapies in Thailand are regulated and are typically permitted under specific hospital and research settings. Legality depends on the exact product, indication, and setting. Always ask which regulatory pathway your program falls under.
What is the difference between autologous and allogeneic?
Autologous cells come from your own body. Allogeneic cells come from a screened donor. Both have safety considerations, but the required documentation is different.
Are more cells always better?
No. Viable, well-characterised cells matter more than raw numbers. A high count with poor viability or unclear identity is not a quality signal.
What documents should I collect before I pay?
Cell source statement, donor screening (if allogeneic), sterility, mycoplasma, endotoxin, viability, cell count, marker verification, storage and transport records, and a written treatment plan reviewed by a physician.
Before you pay
Review your offer against the quality checklist and the documentation standard used on this site. If anything is missing, ambiguous, or delivered verbally instead of in writing, pause. Independent review takes days, not minutes — and it is far cheaper than an unsafe treatment.
Review your offer before you pay.
Disclaimer
Individual results may vary. All programs and procedures are subject to medical assessment and performed under physician supervision. This article is educational and does not constitute medical advice or a doctor-patient relationship.