Can getting an injection invalidate a person's fast? Find out

Plus many other questions (and answers!) about the fast.

Here are some commonly asked questions about observing a fast during Ramadan.
Answers in quotes are given by Mufti Sha Jihan Ameeruddin Nikhab Al Hahmi, Senior Mufti of Islamic Affairs & Charitable Activities Department, Government of Dubai.
Questions and answers have been retrieved from the booklet titled, 'Ask About Ramadan', which is written by Javeed Ahmed Khateeb and is distributed by Islamic Affairs & Charitable Activities Department, Government of Dubai.
Can a person observe a fast without Suhoor (pre-dawn meal)?
Fasting without Suhoor is accepted but one should try not to stay away from the blessings of the Suhoor
Can a person observing a fast get an injection or a glucose infusion?
The person observing a fast is allowed to take an injection or even get a glucose infusion only in case that he/she needs it as a medication for an illness. However, this is not acceptable in case the person needs to invigorate, fortify or provide strength to their bodies.
Can the person observing a fast donate blood to people who are in serious need of it?
A person observing a fast can donate blood to the ones in need.
Does swallowing one's saliva invalidate a person's fast?
There is no problem with swallowing one's saliva during the observance of a fast, but to accumulate it and then swallow it, is not acceptable.
Can a person get a haircut or trim their nails while observing a fast?
Removing any hair or trimming the nails does not invalidate a person's fast.
Does a person's fast get invalidated if they lose or get a tooth removed?
Loss or removal of a tooth does not invalidate a person's fast, but one should pay serious heed to the fact that the blood that results from the tooth removal should not be getting into the stomach.
Is it true that bathing after the Asr prayer invalidates the fast?
The person observing a fast can bathe at any time and can even pour water on his/her head.
Can a person brush his/her teeth with toothpaste while observing a fast?
One can use a toothpaste, but the use of Miswak (root of the arak tree) to clean one's teeth is recommended.

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