- The most common reasons for temporary exclusion from blood donation
This dataset is informative only! Conditions are subject to change according to the current recommendations of higher authorities and professional societies.
In case of any doubts, you can consult on the phone +420 800 100 876 or e-mail darci@nemji.czReason for exclusionLength of exclusionAllergies, hay feverBlood can only be donated during periods without allergy symptoms. We do not recommend donation for people who have allergy symptoms all year round.Acute infection or fever above 38°CExclusion for at least 14 days after the end of treatment and symptom resolution.Contact with an infectious person (family member)A ban for 14-21 days after recovery.Use of antibiotics, antivirals and antifungals14 days after use.Sick leaveCan be donated after termination of the sick leave.Mononucleosis1 year after recovery.Tick biteIn 4 weeks at the earliest, if there are no symptoms of the disease and no evidence of Lyme disease or tick-borne encephalitis.Tick-borne encephalitis1 year after the clinical recovery.BorreliosisCutaneous form - 6 months after administration of antibiotics,neurological form - 2 years based on laboratory results, with chronic infection there comes a permanent exclusion.After returning from European countriesDepending on the current situation (see the Travel table below).28 days,6 months - if the country is at risk of contracting malaria,12 months of prophylactic use of antimalarials.Tooth extraction1 week; if the wound was stitched, one week after removal of the stitches.Dental implantDeferral for 4 monthsMinor surgical procedures (wound stitching)Exclusion 7 days after healing (after removal of stitches) - at the same time after the end of the sick leave.Operations, major surgical procedures - this also includes carpal tunnel surgery, hemiotomy, cosmetic surgery, eye surgery (except laser cataract surgery and lens replacement), hair transplants, liver, kidney and bone marrow biopsies, etc.Exclusion for 4 months.Plaster fixation14 days to 3 months after removal (depending on the nature of the injury).Tattoos (including permanent makeup, henna), acupuncture, piercings, ear piercingExclusion for 4 months.Endoscopic examinationExclusion for 4 months.Treated hypertension (high blood pressure), taking medication for high blood pressureIf the BP is within normal limits and the medication does not contain more than 3 active substances, there is no contraindication to blood donation.Hormonal contraceptionThere's no harm in donating blood.Pregnancy, lactation (breastfeeding)Women must not donate blood during pregnancy and lactation (6 months after giving birth and 1 month after the end of lactation).Miscarriage, termination of pregnancy6 months after miscarriage or termination of pregnancy.MenstruationBlood cannot be donated during menstruationAnti-D immunisation6 months.Receiving a transfusion4 months.Vaccination against tetanus, influenza, meningococcus, tick-borne encephalitis, rabies, influenza, whooping cough, diphtheriaAfter 48 hours if the donor is free of complications and the vaccination was not given after exposure to the disease.After 48 hours - triple combination vaccine.Exclusion for 1 year if vaccination is done after exposure to the disease.Vaccination against TB, typhoid, mumps, measlesExclusion for 4 weeks after application.Hepatitis A vaccinesAfter 48 hours if the donor is free of complications and the vaccination was not given after exposure to the disease.Hepatitis B vaccines1 month.Covid-19 vaccination (after each dose)mRNA vaccine (Pfizer/BioNTech, Moderna) postponement 7 days if no further difficulties occur, otherwise 14 days after resolution of symptoms.Protein vaccines (Novavax, Sanofi) delay 7 days if no further difficulties occur, otherwise 14 days after resolution of symptoms.Vector vaccines (Astra Zeneca, Johnson & Johnson) deferred for 28 days.SmallpoxVaccination - 8 week ban.In case of contact with a sick person - 14 day ban.PsoriasisIt depends on the extent and location of the damage. Extensive damage (especially if it requires total treatment) and damage at the injection site are a disadvantage. Some drugs containing psoralens permanently prevent donation.DiabetesYes, if the sugar level is normal, when compensated by the diet or when treated with oral antidiabetic drugs (PAD) without supportive therapy.When treating diabetes with insulin, blood cannot be donated.CeliacsPermanent exclusion.Antidepressants6 months after the end of treatment.HerpesExclusion for 14 days after complete healing (shingles block 1 month after completion of treatment).Repeated collapses during donation.Permanent exclusion.Hepatitis A1 year after recovery; in the case of known risk contact with an infected person, donation is deferred by 50 days (= incubation period); if surveillance/supervision has been ordered by the public health authority, donation of blood or blood components is not possible for the duration of the surveillance/supervision - Travelling
List of all countries of the world with deferral
Travelling in Europe
after returning from European countries not listed in the table below, blood donation is possible without restriction.
CountryOblastiTemporary exclusionPlatnost odNoteItalyentire country28 daysstay in the area from 1.5.2026 to 31.10.2026overnight stay in the areaFrancieoblast NP CamarqueOccitanie and Provence-Alpes-Côte d'Azur regions28 days28 daysstay in the area from 1.5.2026 to 31.10.2026stay in the area from 12.10.2026 to 31.10.2026overnight stay in the areaovernight stay in the areaBelarusentire countrywithout restrictionsovernight stay in the areaNizozemskoSouth Holland, North Brabant, Gelderland and Utrecht provinces28 daysstay in the area from 12.10.2026 to 31.10.2026overnight stay in the areaHungaryentire country28 daysstay in the area from 1.5.2026 to 31.10.2026overnight stay in the areaRumunskoentire country28 daysstay in the area from 1.5.2026 to 31.10.2026overnight stay in the areaRussiaentire country28 daysovernight stay in the areaGreeceentire mainland28 daysstay in the area from 1.5.2026 to 31.10.202overnight stay in the areaSrbskoentire country28 daysstay in the area from 1.5.2026 to 31.10.2026overnight stay in the areaSpainregiony Andalusie a Extremadura28 daysstay in the area from 1.5.2026 to 31.10.2026overnight stay in the areaTurkeyentire country28 daysovernight stay in the areaUkraineentire countrywithout restrictionsovernight stay in the areaNorth Macedoniaentire country28 daysstay in the area from 12.10.2026 to 31.10.2026overnight stay in the areaList of the most common countries leading to deferral
CountryTemporary exclusionEgypt28 daysIsrael28 daysThe Canary Islands28 daysMadeira28 daysTunis28 daysTunisia28 days
Blood and marrow donors
Conditions for donation
Do not forget that you donate blood to help a sick and weakened person. Before each donation, you confirm with your signature in the “Blood Donor Questionnaire” that you do not consider yourself an at-risk person, see the Instructions to the blood donor, which you can read in advance.
Most people meet the necessary conditions for donation, so we will be very happy to welcome you to our department – whether as a new or a regular blood donor.
A healthy person who meets the following conditions can become a donor:
- Age 18-65 ( donation can be made until 66th birthday).
- A person can become a first-time donor only up to the age of 60 (till the 61st birthday).
- Minimum weight 50 kg.
- They are not alcoholics or drug users, nor have they been treated for substance abuse or alcoholism.
- They do not belong to the so-called group of people with risky behaviour (drug use, sex life with drugs addicts, promiscuous lifestyle, especially with foreign partners, etc.).
- They are not HIV positive, they are not in a close relationship with an HIV positive person.
- They are not monitored in the connection with venereal disease.
- There was no infectious hepatitis B, C or other serious liver disease.
- There is no one with Creutzfeld-Jakob disease in any blood relatives.
- There was no tuberculosis, syphilis, malaria or any other tropical disease.
- There was no typhus or paratyphoid.
- There was no tularemia, nor brucellosis.
- There is no diseases of the nervous system - epilepsy or multiple sclerosis.
- There is no psychiatric illness.
- Does not have coeliac disease or Crohn's disease.
- There is no rheumatic disease.
- There is no serious skin disease.
- They are not severe-allergy sufferers with year-round difficulties.
- There are no serious chronic diseases of the lungs, heart and blood vessels, kidneys, digestive tract.
- There is no chronic blood disease.
- They are not insulin-treated diabetics - treatment with oral antidiabetic drugs (PAD) without support therapy can be accepted.
- They are not treated with human growth hormone or any other preparation with human pituitary gland.
- They had no transplantation of organs, including the cornea.
- Has not lived in England for more than 12 months in total between 1980 and 1996.
All illnesses you have had during your life must be declared before blood donation – see the Donor Questionnaire. Further formalities and examinations will be carried out at the transfusion department immediately before blood donation. Blood can only be donated if the results of these examinations are satisfactory.
Your suitability for donation will be decided by an authorised member of the transfusion department staff on the basis of the facts you provide.