My puppy seems to be afraid to go out the back door I open the door and the other dog goes outside but my little 11 week old Shih TZu will not go out the back door what can I do?

Im also wondering about what age Shih Tzu can hold their bladders he seems to pee all the time ill have him out and he will pee in the house and he nobody ever catches him doing it. He also pees in his cage.

When he is caged up he barks and barks and does not stop for nothing he barked for three hours straight he only shut up because he needed to be let outside?

Im wondering what is normal for a shih tzu puppy when can they hold their bladders and for how long. Is there a way to house train without crate training? Im getting frustrated especially since he seems to be afraid to go outside. Will he ever train?

Shih Tzus can be very hard to train but at 11 weeks this is normal behaviour for most puppies of any breed.

Generally pups can hold their bladder for 1 hour per month of age.
So for an 11 week old that is almost 3 months so they should be able to hold it for nearly 3 hours before needing to pee again.
That is just a general rule though, not set in stone, yours might need to go more regularly.

They don't need to be crated to be toilet trained, you just have to be very vigilant about taking him outside, every hour on the hour until he gets the hang of it.
If he won't walk out on his own then carry him out there and make sure you take toys and treats with you so he thinks outside is a good place to be.

As for crate training I will post some text I have pre-typed up on my PC and just cut and paste it for you, have a read and let me know if you think it would help you...

Selecting a crate.
A dogs crate should be large enough for the dog to stand up in, turn around easily and be able to lay down comfortably.
Crates come in all shapes and sizes so shop around for one that best suits your dogs size.

I personally prefer to use all wire crates as to the plastic pet pack varieties as even though the plastic crates have ventilation they can become very hot.
When you leave, no matter how long for always have fresh water available, D-shaped water bowls are great for crates, they are shaped like a D and the flat part has clips to secure to the wire and prevent spills.

Toys are also a wonderful training tool as it will keep the dog distracted, I use kong toys stuffed with yummy food as a cure for boredom, having special toys or treats that the dog gets only when you go out are also a wonderful idea, it shows them that the crate is a good thing, not a punishment.

Another good idea for crates is to cover it with a blanket or sheet. You can leave the front open so the dog can see but having a blanket over the sides and back makes the dog feel more secure than a wire crate out in the open.
Another reason I prefer wire crates, you can adjust the covering to suit the weather.

When crate training my dogs I first coax them into the crate with a yummy treat, I let them eat the treat in the crate and play with a toy in there. Once they are comfortable with being in the crate I give them another treat then lock the crate and then go sit away from the crate and ignore the puppy.
I only sit down for a minute or two, just long enough so that the dog does not bark or cry.
I then walk over and let them out of the crate and give them praise for not crying.

Letting them out only if they are not crying is very important. If you let the dog out of the crate while it is crying it will only teach them that crying makes you come back and let them out.

Next time I sit down for a few more minutes, again only letting them out if the dog is not crying.

Increase the amount of time you sit for and always let them out before the dog starts crying (you will learn how long that threshold is pretty quickly)

This teaches the dog that they are not being left in the crate forever.

A lot of people prefer to leave the house while they are crating their dog to start with, this is purely personal preference, I have tried both and had more success with staying near the dog.

The only attention the dog shoulg get should be an angry "no" from you when it cries to show it that crying is naughty.
Just remember, however loud and hard your puppy is screaming do not let it out of the crate. It will calm down and then it can come out.