Are there some special reasons?
You will need to read the rules to understand why they had more rules.
I see. I will do it some time later then.
Every rule has a backstory. There were just more reasons for rules for bhikkhuni than bhikkhus. The Not travelling alone rule which was made after a bhikkhuni was raped for instance. When i look at the bhikkhuni rules it also seems like some of them are just the same as bhikkhu rules but worded differently.