This definition applies regardless of whether any form of protection was used during sexual activity.<\/span><\/i><\/p>\nSexual behavior is a significant factor in determining whether a person should temporarily or permanently refrain from donating blood.<\/span><\/p>\n\n- If your gender identity or preferred sexual orientation differs from the sex assigned at birth, your donation eligibility will consider your sexual behavior, not your physical appearance. For example, if you are transgender and do not engage in risky sexual behaviors, you are eligible to donate blood.<\/span><\/li>\n
- If you have only one sexual partner and no risky sexual behaviors, you are eligible to donate blood.<\/span><\/li>\n
- If you have a new sexual partner or have recently changed partners, you must wait at least 4 months before donating blood.<\/span><\/li>\n
- If you have multiple sexual partners, you must wait at least 4 months after your last sexual encounter before donating blood. However, if you have multiple partners due to religious beliefs and engage in none of the aforementioned risky behaviors, you are still eligible to donate.<\/span><\/li>\n
- If you or your partner engage in risky sexual behaviors, you must wait 4 months after your last sexual encounter before donating blood.<\/span><\/li>\n<\/ol>\n
*\u00a0<\/span>If you are a man who has sex with other men, you are not eligible to donate until scientific studies confirm that it is safe to do so. Ongoing studies are in progress. Donation requests must include individual donor nucleic acid testing (ID-NAT).*<\/span><\/i><\/strong><\/p>\n<\/div>\n<\/li>\n- \n
12. Taking or Having Taken HIV-Related Drugs<\/h3>\n\n
\n- HIV medications\u2014specifically PrEP and PEP\u2014can reduce the level of HIV nucleic acids to the point where the virus becomes undetectable using a highly sensitive gene-based method known as Nucleic Acid Testing (NAT). This can make laboratory tests ineffective and inaccurate. To ensure the safety of blood recipients, the waiting periods for individuals taking HIV medications before they can donate blood have been extended.<\/li>\n<\/ul>\n
Pre-Exposure Prophylaxis (PrEP)<\/strong>\u00a0is a regimen of HIV medications taken by HIV-negative individuals to prevent infection. It is intended for those at risk of contracting HIV through sexual activity, injection drug use, or other high-risk behaviors.<\/p>\nPost-Exposure Prophylaxis (PEP)<\/strong>\u00a0is a short-term course of HIV medications taken shortly after potential exposure to the virus to prevent it from establishing an infection in the body.<\/p>\n\n- If you have taken PEP or PrEP orally, you must wait 1 year after your last pill before donating blood.<\/li>\n
- If you have received PEP or PrEP via injection, you must wait at least 2 years after your last injection before donating blood.<\/li>\n<\/ul>\n<\/div>\n<\/li>\n
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13. Tooth Filling & Scaling (3-Day Interval) \/ Tooth Extraction & Root Canal Treatment (7-Day Interval)<\/h3>\n\n
\n- You should wait 3 days after having a tooth filling or scaling before donating blood. There is a risk of infection during and after dental procedures, and even if you are asymptomatic, you could still transmit infections to blood recipients.<\/span><\/li>\n
- If you have had a tooth extraction or root canal treatment, you must wait up to 7 days before donating blood to ensure that your wounds have fully healed.<\/span><\/li>\n<\/ul>\n<\/div>\n<\/li>\n
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14. Diarrhea (7-Day Interval)<\/h3>\n\n
\n- Watery and more frequent bowel movements are commonly linked to food poisoning. If your diarrhea is due to toxins and is non-infectious, you should wait 7 days after your symptoms have resolved before donating blood.<\/span>
<\/span><\/span><\/li>\n<\/ul>\nIf you are experiencing infectious diarrhea and have been prescribed antibiotics, it is recommended to wait 7 days after your last antibiotic dose before donating blood.<\/span><\/p>\n<\/div>\n<\/li>\n- \n
15. Piercing, Tattoo, Tattoo Removal, Acupuncture (4-Month Interval)<\/h3>\n\n
\n- If you have a body part pierced using proper aseptic techniques at a certified hospital, you can donate blood immediately. However, if the piercing is performed at a non-hospital facility, you must wait 4 months, provided you test negative for HIV and Hepatitis B and C using Nucleic Acid Testing (NAT). If you do not have NAT results, the waiting period extends to 1 year.<\/span><\/li>\n<\/ul>\n<\/div>\n<\/li>\n
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16. Minor Surgeries (7-Day Interval) \/ Major Surgeries (6-Month Interval)<\/h3>\n\n
\n- Minor Surgery<\/b>: This refers to any invasive procedure that involves the removal of only skin, mucous membranes, or connective tissue, typically performed under local anesthesia with minimal blood loss. An example of a minor surgery is abscess drainage. You need to wait 7 days after a minor surgery before donating blood.<\/span><\/li>\n
- Major Surgery<\/b>: This involves more extensive procedures that may require general anesthesia and respiratory support. You must wait at least 6 months after a major surgery before you can donate blood. Examples of major surgeries include spinal fusion and laparoscopy. If a blood transfusion was part of your surgery, the waiting period extends to at least 1 year.<\/span>
<\/span>If you have undergone dilation and curettage (D&C), you must wait 1 month if the procedure was performed without anesthesia and was not related to a miscarriage. If anesthesia was used, you need to wait up to 6 months before donating blood.<\/span><\/li>\n<\/ul>\n<\/div>\n<\/li>\n- \n
17. Receiving Blood or Blood Components in the Past Year<\/h3>\n\n
\n- If you have received blood or blood components, you must wait up to 1 year before donating blood. While the risk of infection from a blood transfusion is very low, this waiting period is in place for safety reasons.<\/li>\n<\/ul>\n<\/div>\n<\/li>\n
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18. Organ & Stem Cell Transplantation<\/h3>\n\n
\n- If you have undergone an organ or stem cell transplant, you are not eligible to donate blood. After a successful organ transplant, you will need to take immunosuppressant or anti-rejection medications to prevent your immune system from attacking the donor organ. These medications can pose risks to an expectant mother, potentially causing birth defects or harming the fetus.<\/li>\n<\/ul>\n
For stem cell transplants, also known as bone marrow transplants, most patients are treated for hematologic diseases. Even though they may not require immunosuppressants, if you have had a hematologic condition that necessitated a bone marrow transplant, you should refrain from donating blood. However, if you have had a cornea transplant, you may be eligible to donate blood after a resting period of 1 month.<\/p>\n<\/div>\n<\/li>\n
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19. Needlestick Injuries in the Past 1 Year<\/h3>\n\n
\n- If you have been punctured by a blood-stained needle, you must wait 1 year before donating blood. This waiting period ensures that the \u201cwindow period\u201d has passed, allowing time to confirm that you have not contracted any bloodborne diseases from the needlestick injury.<\/li>\n<\/ul>\n<\/div>\n<\/li>\n
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20. Having Had Hepatitis<\/h3>\n\n
\n- If you had Hepatitis A before the age of 11 and have since fully recovered, you are eligible to donate blood.<\/span><\/li>\n
- The two most common hepatitis viruses affecting adults and children over the age of 11 are Hepatitis B and C. If you contract either of these after turning 11, you are not eligible to donate blood. However, if your liver inflammation was caused by something other than a hepatitis virus and you have a medical certificate to confirm this, you may donate.<\/span><\/li>\n<\/ul>\n<\/div>\n<\/li>\n
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21. If Your Partner or Family Member Has Had Hepatitis in the Past Year<\/h3>\n\n
\n- Having close contact with hepatitis increases your risk of contracting Hepatitis B or C. Therefore, you should refrain from donating blood for 1 year to ensure that you are not carrying the virus, which could be transmitted to blood recipients.<\/li>\n<\/ul>\n<\/div>\n<\/li>\n
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22. If You Have Ever Tested Positive as a Carrier of Hepatitis<\/h3>\n\n
\n- If you have ever tested positive as a carrier of Hepatitis B, you should refrain from donating blood permanently, even if recent tests show no presence of the virus. This is to prevent the transmission of the virus to blood recipients.<\/li>\n<\/ul>\n<\/div>\n<\/li>\n
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23. If You Have Had Malaria in the Past 3 Years<\/h3>\n\n
\n- If you have been diagnosed with malaria, you must refrain from donating blood for 3 years after you have fully recovered from the illness.<\/li>\n<\/ul>\n<\/div>\n<\/li>\n
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24. If You Have Recently Visited a Malaria-Endemic Area<\/h3>\n\n
\n- If you have traveled to a malaria-endemic region for a short period, such as for tourism, you should wait 1 year before donating blood. This precaution is necessary because malaria remains a concern in Thailand, with outbreaks in various areas, especially in forested regions where mosquito vectors thrive. Additionally, there are no available laboratory tests to screen for malaria in donated blood. Consequently, thorough assessment through questionnaires and interviews is essential.<\/li>\n<\/ul>\n<\/div>\n<\/li>\n
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25. History of Illness: Influenza, Dengue Fever, Zika Virus, COVID-19, or Chikungunya in the Past Month<\/h3>\n\n
\n- Influenza<\/strong>: Wait 2 weeks after recovery before donating blood.<\/li>\n
- Dengue Fever<\/strong>: Wait 1 month after recovery before donating blood.<\/li>\n
- Chikungunya<\/strong>: Wait at least 6 months after recovery and once joint pain has resolved before donating blood.<\/li>\n
- Zika Virus<\/strong>: Wait 6 months before donating blood.<\/li>\n
- COVID-19<\/strong>: Follow these guidelines:\n
\n- If you tested positive for COVID-19 but were asymptomatic, wait at least 7 days after the positive test before donating blood.<\/li>\n
- If you had COVID-19 symptoms, wait 14 days after recovery and once all symptoms have resolved before donating blood.<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n
Note: Guidelines may be updated based on the evolving COVID-19 situation.<\/p>\n<\/div>\n<\/li>\n
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26. History of Illness in the Past Month<\/h3>\n\n
\n- Influenza<\/strong>: If you have had the flu, wait 2 weeks after recovery before donating blood.<\/span><\/li>\n
- Dengue Fever<\/strong>: If you have had dengue fever, wait 1 month after recovery before donating blood.<\/span><\/li>\n
- Chikungunya<\/strong>: If you have had chikungunya, wait at least 6 months after recovery and once you no longer have joint pain before donating blood.<\/span><\/li>\n
- Zika Virus<\/strong>:
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