PermissibleWorship · Fasting (Ṣawm)
Is it permissible to have a blood test whilst fasting?
The question, as received
I have a blood test appointment in two days. Can I have the blood test whilst fasting? Will it break my fast? Is it permissible to have a blood test whilst fasting?
The answer
It is permissible to have a blood test whilst fasting.[1] However, it may weaken a person. Therefore, it may be advisable to postpone the blood test for after Ramadhan if it is not urgent.
And Allah knows best.
Mufti Faraz Adam
References
1ثُمَّ خُرُوجُ الدَّمِ مِنْ الْبَدَنِ لَا يُفَوِّتُ رُكْنَ الصَّوْمِ وَلَا يَحْصُلُ بِهِ اقْتِضَاءُ الشَّهْوَةِ وَبَقَاءُ الْعِبَادَةِ بِبَقَاءِ رُكْنِهَا (المبسوط للسرخسي ج 3 ص 57 دار المعرفة)
Based on the Hanafi school and on the question as it was asked. Another mufti may reach a different conclusion. Read the disclaimer.