Is it makrooh to look in the mirror if there is no need for it?
بسم الله الرحمن الرحيم
(Fatwa: 709/709/SD=11/1436)
It is wastage of time to look into the mirror without a need. Hadith stops from wasting the time. It also says that the person who saves time is good Muslim.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband