Ghusal

Discharge

Q: I was sitting and doing nothing. I didn't have any sexual thoughts but some discharge came out. I went to the bathroom and urinated and then I washed 3-4 times. My question is that am I napak because the discharge came out. I wasn't thinking about anything bad? I have been having doubts. If I did become napak but got my periods but I took a shower, will the napaaki leave or will I be napaak and if I sit and use things will they become napak?

Sunnah method of ghusal

Q: Is this the correct method of ghusul? First do niyyah, then wash hands up to wrist three times, then gargle three times, then wash the private areas. Perform wudhu like normal, pour water over the head three time and recite kalima, then wipe off water from right shoulder three times then left? I have been using this method.

Dirt around the private part

Q: Dirt is formed due to sweat around my private part (black dirt) and gets stuck near the place where the circumcision begins (and this dirt can only be seen if there is an erection). Recently it occurred to me that this might have prevented the water to reach the skin during ghusl. I don't know whether that dirt is porous or not. Was my ghusl valid which I have been doing the same way without noticing it from the day I became baaligh. If ghusl is not valid, are my clothes and the towel and all the other things which I use everyday are they paak?

Dissecting dead bodies

Q: In medical school you have to take anatomy class and dissect cadavers (dead bodies) for educational purposes of course. The cadavers are non-Muslim as far as I know but you wear gloves and lab coat while dissecting.

1) Do you have to do ghusal every time you have that class because you dissected the cadaver or is wudhu sufficient to do wudhu to pray namaz?

2) If you have more classes after that and you just wash your hands do you have to read anything while washing them?