Hair Transplant With Diabetes, High Blood Pressure or Blood Thinners: What Thai Clinics Check

One r/HairTransplants poster had 4,300 grafts at Absolute Hair Clinic in Bangkok in November 2024. The day before surgery, they met Dr. Ratchathorn Panchaprateep for the pre-op consultation: "She designed my hairline, conducted a donor area assessment and did my blood test for HIV."

If you have diabetes or high blood pressure, or take a blood thinner, a hair transplant in Thailand starts with that same visit. The Thai clinics we read ask about chronic conditions and medicines, but none publishes a rule for diabetes or blood pressure.

The surgeon decides after reading your medical history. At the Bangkok clinics patients describe, an HIV blood test comes before surgery, and HairTran says the blood test can't be skipped.

The short answer: a condition is a question for the surgeon, not an automatic no

The medical bodies and clinics we read describe candidacy in terms of overall health, not a list of banned conditions. The ISHRS (International Society of Hair Restoration Surgery) puts it this way: "Obviously, the patient must also be medically safe to undergo a surgical procedure."

The same page adds: "Nevertheless, no surgery is without risk." It doesn't name any condition.

The American Academy of Dermatology doesn't either. Its two requirements are "Enough healthy hair on your scalp that can be transplanted to the area that needs hair" and "The ability to grow hair on the thinning area of your scalp".

Bangkok Hair Clinic comes close to your question on its Thai home page. Translated from Thai: "permanent hair transplantation may have limitations in some cases, such as people who have certain chronic conditions, or hair loss patterns that are not caused by heredity."

It doesn't say which conditions. So the line tells you some chronic conditions can limit a transplant, and nothing about how yours will be judged.

HairTran is the one Thai clinic we found that answers for a named condition. Its English FAQ asks "Can HIV-positive patients undergo a hair transplant?" and answers: "Theoretically, yes. However, the viral load must be undetectable and non-transmissible."

The gate HairTran sets there is a measured result. That's the closest published example of how a clinic thinks about "can I still get one if I have X".

Take your condition to your own doctor and to the surgeon before you book.

What a Thai clinic actually checks before it says yes

HairTran's English FUE page describes the first step: "We begin with an in-depth discussion about your medical history, lifestyle, and hair loss concerns, followed by a detailed scalp examination."

Its Thai FUE page lists readiness among the factors to weigh before deciding. Translated from Thai: "consider overall health, having chronic conditions, and taking various medications."

DHI Thailand says on its Thai home page that the doctor follows "strict steps, such as a health check before treatment, to make sure we select the person who is truly suitable for a hair transplant" (translated from Thai). It doesn't name a test.

Samitivej Hospital's Hair Restoration Medical Center describes, on an older page (it still carries an April 2015 holiday notice), "personalized analysis through blood and hormone tests". It names no specific test.

Two different blood tests can come up. The AAD says: "To find out why you have hair loss, you may also need a blood test."

The other kind is the screen a clinic runs before surgery. That's the one Thai clinics publish.

The blood work and why they run it

HairTran has a Thai page on why it tests blood before a transplant. Translated from Thai: "A hair transplant is a surgical procedure in which needles and medical instruments come into direct contact with blood. An HIV test before the transplant, together with a hepatitis virus test, is therefore something every clinic must do..."

"Every clinic must do" is HairTran's own position. The page doesn't say which hepatitis virus it tests for.

On whether you can skip it, HairTran answers (translated from Thai): "No. The blood test is something Hairtran Clinic is very strict about, to assess the patient's readiness and to reduce the risk that could arise during the transplant, for the patient, the medical team and all staff who handle the equipment."

For patients who book a transplant, HairTran says it provides "a free basic screening blood test on the day of the appointment" (translated from Thai, read 20 October 2026).

DHT Clinic handles it differently. In an email to AsiaPatient on 15 October 2026, its price "Excludes HIV/hepatitis C blood tests and Covid ATK (฿1,300)", about $39.

That ฿1,300 covers the blood test and the Covid antigen test together. Dollars at ฿33.14 = $1 (European Central Bank reference rates, 22 September 2026).

Ask each clinic whether the pre-op blood test is in your quote.

Some clinic pages don't mention a test at all. Bangkok Hair Clinic's FAQ and FUE Shaven pages, and Hairsmith's cost page, publish no blood or HIV test requirement as we read them, so ask those clinics directly what they test.

None of the hair clinic pages we read lists a blood sugar, thyroid or HbA1c test as part of the pre-op screen. If you have diabetes, ask the clinic whether it wants your recent blood sugar levels or other results from your own doctor.

Diabetes

None of the Thai clinic pages we read publishes a rule for diabetes. What they publish is the general question about chronic conditions and medicines, quoted above.

The peer-reviewed record is thin. A 2024 paper in Aesthetic Plastic Surgery looked at 18 patients who had recipient-site necrosis (tissue death in the area that received grafts) after FUE.

Its abstract reports: "The most common risk factors identified were smoking 66.7% (n = 10), hypertension 20% (n = 3), and diabetes mellitus 13.3% (n = 2)."

Those are shares of the people who had necrosis. They don't tell you the chance of necrosis for someone with diabetes.

Necrosis itself is uncommon. A 2026 review of FUE complications calls it "a rare but potentially severe complication".

A second 2024 study on shock loss listed diabetes among the factors it analyzed. Its abstract names sex as a risk factor.

So researchers track diabetes in hair transplant patients. The studies above give no number a clinic will hold you to.

Your own doctor is the person who can judge your diabetes, and the surgeon needs to hear about it before you book.

High blood pressure

In the 18-patient necrosis series above, 3 patients had hypertension. A 2024 paper in Skinmed is titled "Preoperative Labile Hypertension with a Perioperative Resolution during Hair Transplant Surgery", and PubMed lists no abstract for it.

Patient accounts touch on it. Finch, the author of the Finch Sells blog, had FUT at DHT Clinic in Bangkok in February 2017 and wrote that before the operation there was "a standard check of the vital signs, and a quick blood test against various diseases (HIV, etc)."

At DHT in November 2024, u/TomasX90 wrote that in the pre-op room "they measured my blood pressure".

Those are two patient accounts, both at DHT. They show a check happened there in 2017 and 2024, not what every clinic does now.

HairTran's Thai blood test page gives a reason blood pressure matters to the surgeon. Translated from Thai: "if the patient has slow blood clotting or abnormal blood pressure, it may cause heavy bleeding during surgery, which is an obstacle to hair grafting and may make the wound heal more slowly than it should."

The page doesn't say what counts as abnormal.

Blood pressure medicines also come up on a Thai clinic page in a different context. DHI Thailand writes that "certain medications (e.g., blood pressure meds or antidepressants) can trigger or worsen hair loss symptoms in women."

That's about what causes hair loss, not who can have surgery. Our page on hair transplants for women in Thailand covers that side.

Put every blood pressure medicine you take on the list you give the surgeon.

Blood thinners

Bangkok Hair Clinic publishes an instruction on blood thinners. Under its pre-procedure instructions for shaven FUE, it writes:

"Stop oral medication, vitamins or supplements that affect blood coagulation (e.g. blood thinners, Vitamin C) 2 weeks to 1 month prior to the procedure. Please ask if you are unsure."

That is one clinic's instruction to its own patients. It isn't general advice, and it isn't a decision to make from a web page.

A blood thinner prescribed for a heart, rhythm or clot condition is stopped or kept only on the advice of the doctor who prescribed it.

Take the clinic's instruction to the doctor who prescribed your blood thinner before you book, and tell the surgeon exactly what you take.

HairTran's Thai blood test page gives bleeding as its reason for checking clotting and blood pressure. The 2026 FUE review describes "mild postoperative oozing first 24-48 h" and says "postoperative bleeding is uncommon and typically self-limited". It gives no incidence figure.

Our guide to whether a hair transplant in Thailand is safe covers what else to check before you choose a clinic.

The other medications you take

HairTran's English FUE page is direct: "Always disclose medical conditions and current medications to your doctor for safety and planning."

Bangkok Hair Clinic's Thai FAQ adds allergies. Translated from Thai: "The clinic will take a detailed allergy history to reduce the risk of complications from using medications. The patient must disclose their history completely, for safety."

The reason shows in how the surgery runs. The AAD says: "Most patients remain awake during the entire surgery and need only an anesthesia that makes the scalp numb. Some patients also take a mild sedative to help them relax."

So the clinic will give you medicine on the day. It needs to know what's already in your system.

Hair loss medicines come up too. The ISHRS describes the ideal FUE candidate as "someone who has one's hair stabilized with medical therapy like finasteride and minoxidil".

That passage is about who suits a transplant. It doesn't cover what to do with either medicine around surgery, so ask the surgeon and your own doctor.

Supplements count as well. Bangkok Hair Clinic's blood thinner instruction includes vitamins and supplements that affect clotting, with Vitamin C as its example.

How to disclose it and clear it with your own doctor

Before you book, give the clinic a written list of:

• Every diagnosed condition, including diabetes, high blood pressure and any heart, rhythm or clot condition
• Every medicine, vitamin and supplement you take, with the dose
• Any allergy, especially to medicines
• Any history of abnormal scarring or keloids
• Your HIV status, if you're positive
• Whether you smoke

Scarring belongs on the list too. The 2026 FUE review says risk factors for abnormal donor scarring "include a personal or family history of abnormal scarring, darker skin phototypes, and previous keloid formation".

Smoking does too. HairTran writes that "Habits such as smoking, poor diet, and high stress can impact healing and hair health."

Our own advice goes one step further. None of the clinic pages we read requires it, but we'd take the clinic's pre-op instructions to the GP or specialist who handles your care and ask them for a short note on your condition and medicines.

Bring that note to the consultation. The surgeon then reads your history from the doctor who knows it.

If you already have recent blood results from home, ask whether the clinic accepts them. HairTran says it does "if the result covers all the tests the clinic requires and the result is no older than six months" (translated from Thai).

The person reading your history should be a licensed doctor. Our guide to checking a Thai doctor's license shows how to look one up on the Medical Council of Thailand register.

Our booking guide covers deposits and the steps that follow.

What Thai clinics publish for each condition

What a Bangkok clinic may run on you before surgery

Five patient posts on r/HairTransplants, from 2024 to 2026, describe an HIV test before surgery: one at DHT, two at Absolute, one at HairTran and one with Dr. Patty, whom HairTran's FAQ lists. Two clinics describe the test in their own words.

We compare what clinics and patients publish. Nobody at AsiaPatient has visited these clinics or had a procedure at them.

The most recent account comes from a HairTran patient with 3,553 grafts. u/blackbandana123 wrote: "On the day of the procedure, my appointment was at 10 AM. They brought me in right away for HIV testing, consent forms, and pre-op photos."

At DHT, u/TomasX90 had the test at a separate visit. "I had a pre-op consultation one day prior to surgery. It took around 1hr a 15 mins," they wrote, and "They also took my blood to test for HIV and Hep C".

What Thai clinics say about candidacy, in their own words

Bangkok Hair Clinic's English FAQ: "Candidacy depends on several factors, including the type and extent of hair loss, quality and quantity of donor hair, age, hair characteristics, and realistic expectations."

It continues: "Our physicians will evaluate your scalp and medical history during consultation to determine if surgery is appropriate, or if other treatments may be recommended first."

DHI Thailand's English home page: "Eligibility requires having sufficient healthy donor hair on the back or sides of your head, stabilized hair loss is a must and overall good general health."

HairTran's Thai blood test page on HIV, translated from Thai: a patient can still have a transplant "if they are in good physical condition (CD4 count within the level the doctor sets) and take antiviral medication continuously until the virus is at a very low (undetectable) level. This must depend on close assessment by the doctor."

HairTran's English FAQ adds that "costs may be higher due to the extra-stringent safety protocols and specialized instrument handling required to protect both the clinical environment and our medical staff."

Bangkok Hair Clinic's Thai FAQ also says, translated from Thai: "Hair transplantation with FUT, FUE, DHI techniques is a procedure with a very low risk of complications, especially when receiving treatment with a highly experienced doctor."

That's the clinic's own statement. The 2026 FUE review gives overall figures from different groups of patients, including these two.

The first: "Liu et al. estimated an overall complication rate of approximately 1%-5%, although these data were derived from historical series using mainly the FUT technique."

The second: "In a retrospective study of 1,030 FUE procedures, Aksoz et al. reported notable complications in 9.9% of cases; however, nearly half of the patients experienced mild postoperative events, most commonly slight frontal edema and donor-site pruritus."

What real patients report from Thailand

The five posts share a pattern. The HIV test sits inside the ordinary pre-op routine, next to hairline design, consent forms and photos.

The timing varies by clinic. At Absolute and DHT, patients describe it at a consultation the day before surgery; at HairTran and with Dr. Patty, on surgery day.

None of these patients wrote about diabetes, high blood pressure or a blood thinner. Their posts show the routine check, and we didn't find a patient account from a Thai clinic describing how a chronic condition was handled.

When you are not ready yet, and what comes next

A surgeon can say not yet. Bangkok Hair Clinic's physicians decide "if surgery is appropriate, or if other treatments may be recommended first."

If that happens, take the answer to the doctor who manages your care before you look for another clinic. Your doctor can tell you what the surgeon's concern means for your condition.

Smoking is one habit clinics write about directly. DHI Thailand's guidance is: "Avoid alcohol and smoking for at least 7-10 days before the procedure to minimize inflammation."

In the 18-patient necrosis series above, 10 of the patients smoked.

Frequently asked questions

Can I get a hair transplant in Thailand with diabetes?

The Thai clinic pages we read publish no diabetes rule. They ask about chronic conditions and medicines, and the surgeon decides after reading your medical history.

In one 2024 series of 18 patients who had recipient-site necrosis after FUE, 2 had diabetes, so researchers do track it. Take your diabetes to your own doctor and tell the surgeon about it before you book.

Do I have to stop my blood thinner before a hair transplant?

Bangkok Hair Clinic tells its shaven FUE patients to stop medicines and supplements that affect clotting "2 weeks to 1 month prior to the procedure" and adds "Please ask if you are unsure." That is one clinic's instruction. A prescribed blood thinner is stopped or kept only on the advice of the doctor who prescribed it, so take the clinic's instruction to that doctor before you book.

Do I need an HIV test before a hair transplant in Thailand, and is it required?

At HairTran, yes. Its Thai page says the blood test can't be skipped and that HIV and hepatitis virus tests are something every clinic must do (translated from Thai).

Five patients on r/HairTransplants describe an HIV test before surgery: one at DHT, two at Absolute, one at HairTran and one with Dr. Patty, whom HairTran's FAQ lists. DHT's price excludes "HIV/hepatitis C blood tests and Covid ATK (฿1,300)", while HairTran says its basic screening test is free on the day.

Can I get a hair transplant if I am HIV-positive?

HairTran's English FAQ answers "Theoretically, yes. However, the viral load must be undetectable and non-transmissible." It says costs may be higher.

Its Thai page adds a CD4 count "within the level the doctor sets" and continuous antiviral medication, and says this must depend on close assessment by the doctor (translated from Thai). Ask your HIV doctor and the surgeon together.

Can I bring my own blood test results from home?

HairTran says yes "if the result covers all the tests the clinic requires and the result is no older than six months, counted from the test date to the transplant appointment date" (translated from Thai). That is one clinic's rule. Ask your clinic which tests it needs before you get tested at home.

Do I need my own doctor's approval?

None of the Thai clinic pages we read says it requires a letter from your own doctor. We'd get one anyway.

Take the clinic's pre-op instructions to your GP or specialist and bring their note on your condition and medicines to the consultation. For a blood thinner, the prescribing doctor's advice is the one that counts.

The bottom line

If you have diabetes or high blood pressure, or take a blood thinner, the Thai clinics we read don't publish a yes or a no. They ask about your health, and the surgeon decides.

Write down every condition, medicine, supplement and allergy before you book. Take the clinic's pre-op instructions to your own doctor, and tell the surgeon everything.

Expect an HIV blood test before surgery at the Bangkok clinics patients describe, and ask whether it's in the price. Check the doctor's license before you pay a deposit.

If you'd like help comparing what Thai clinics publish, you can contact us.