The Office of the Supreme Leader

Rules of Fasting

  • Fasting Defenition
  • Types of Fasting
  • Conditions of Obligatory Fast
  • Ways to Establish the New Lunar Month
  • Fasting Intention
  • Fast Invalidators
  • Medical Rules of Fasting
    • A Physician Forbids Fasting
    • Fear of Harm
    • Fast of Special Patients
    • Injection While Fasting
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      Injection While Fasting

      188. What is the rule on hepatitis vaccination while fasting? Does it invalidate fast?
        A: If it is intramuscular injection, it is no problem.
       189. Please explain your view on having injections while fasting during the blessed month of Ramadan?  
        A:  It is based on obligatory precaution for the fasting person to avoid having any kind of supportive, nutritional or intravenous injections. The same rule is applied to all kinds of intravenous fluid infusions. However, there is no objection to using anesthetic injections and intramuscular ones for treatment purposes. 
      190. What is the rule on receiving infusion during the month of Ramadan?
        A: By obligatory caution, one should avoid intravenous fluid infusions, whether it is supportive, nutritional or the like, including those used for treatment purposes.

      Blood Transfusion
      191. I am suffering from thalassemia and should receive blood during fast. Is my fast valid or I should perform its qaḍā’?
        A: To be a recipient in blood transfusion invalidates fast.

      To Bleed While Fasting
      192. Does it invalidate my fast if I make my body bleed or give blood?
      A: It is not among fast invalidators. However, it is makrūh for a fasting person, if it leads to — in bloodletting, etc. — his weakness.

    • Rules of Dentistry
  • Rules for women
  • Zakat ul-Fitrah
  • Eid ul-Fitr Prayer
  • The Qaḍā’ Fast
  • Hired Fasts
  • Kaffārah of Fast
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