I have read through all the other excessive biting posts..

I have a 3 month old female doberman puppy.. she BITES.. it might sound so simple, but its not.. I have scratch marks all over my legs and hands.. she has teeth an inch long and razor sharp..
It punctured by thumb today morn and I bled quite a bit..

She's a nice dog when she's not biting.. she loves to cuddle against me and sleep.. but that's the only time she's nice..

She's NOT scared of ANYTHING.. am quite an imposing guy at 6 foot 4 and 200 pounds but she just doesn't get deterred.. though she doesn't bite my mom as much which I can't explain how as am more loving towards her than my mom and also a lot more stricter than my mom..

I have tried EVERYTHING. Believe me.. I have pinned her down on her back until she stops struggling ( which she rarel does), I have locked her in the balcony for a few minutes every time she bites, I have whacked magazines and papers and made loud noises to scare her but that only seems to excite her more and she grabs the magazine and rips it apart..

I have yelled at her but she just does NOT seem to understand.. I have a younger sister at home too who got bitten quite bad and now she won't handle the puppy..

Its either my sister who is free in the house or the puppy as she won't walk around when the puppy is left free..
I mean its not fair for both of them..

I have had a labrador and a dalmatian before and I have never encountered such a problem.. I really don't want to give this one away as I could be a temporary problem till she stops teething..

But even 2 more months of teething and I ll probably look like I have a dragon for a pet..

It sounds like you haven't established your role as pack leader. She doesn't understand the house rules yet. Yelling, making loud noises, or pinning her down, are not going to help you.

You need to stay calm and assertive. Do not raise your voice, lock her on the balcony, or make loud noises. This will ony excite her, or make her more aggressive. You need to make a firm command BEFORE the biting starts. I assume because of her age, this is happening while you are playing. Either way, you have to stop her from doing this now, while she is young.

Don't ever get angry, stay calm, and give her a very firm command and correction, by using your hand as the momma dog would do with her pups. A short, but firm "bite" with your hand as a warning. (usually around the neck area)

I'll give you a link that might help you a bit with this.

Adams Dog Training and Dog Behavior

When rex was a pup he always used to bite like this. He thought he was playing and didn't understand how to be gentle. The money wasn'T there to drive 2 hours a day to bring him to a professional trainer either. I tried every thing, shaking a bottle with rocks in it, yelping when he bit like a dog would to say that hurt(believe it or not) yet nothing worked.

Than we had a break through, my cousin said that her old doberman used to bite as a pup and that she would lift him up by the scruff of his neck and bite his ear lightly. For about 2 days I did this every time rex bit and it really worked, his biting almost ceased accept for a few instances which were fixed by the Halti(aka Gentle Leader).

I will also say that it sounds like this pup has a lot of energy. How many walks is she going on, for how long?

Are you playing with her using your hands? If so, she may be having a hard time learning why it is OK to bite down on her other toys, but not on hands. At what age did she leave her mother, and was she an only puppy--she could have missed out on a lot of bite inhibition training if she didn't have siblings or her mother around long enough.
This is definitely not a breed to use heavy handed training methods. They respond much better to calm, firm leadership. For all their bravado, most are fairly anxious dogs.
The method that has worked best for me is the "ow, that hurt!" yelp that you mentioned before. You need to be really dramatic for this to work, and you need to work on being able to do a very high-pitched yelp (I have a low-pitched voice, yet I can almost shatter glass with my puppy yelp!) As soon as you yelp, stand up, turn away from her and walk off with as much drama as you can muster. If you can get a startled "hey, what did I do??!" look from her you are doing it right.
You can return to her in a couple of minutes with a favorite toy and begin to play again. If it is necessary to make it clear what is and is not play, you may need to resort to actual play bows before starting a play session.
Dobies are super-intelligent and learn quickly once you can work out your communication.

She's taken for a walk once in the morning.. a short walk just so that she can see the other dogs and sniff them.. she's only 3 months and she just had her rabies shots and the doc said it would take a couple a months for the immunity to develop..

She's energetic is a gross understatement.. I take her to the terrace and make her run and until she starts panting ( half a dozen times a day) and then I throw soft toys and make her fetch them.. she proly runs about 2 kms a day if its all put together..

Well biting her ears would be a good idea I guess, but my mom will kill me if I do it in front of her.. she's very protective of the puppy..

I ll try it anyway and get back to you.. thanks a lot..

Actually she didn't get to play much with her puppy mates I guess.. cause she got very sick when she was a month old and my mom bought her from the breeder who wasn't able to tend to her..

Probably why she doesn't know that biting hurts..

Did you try a halti?

You say your mom is very protective of the puppy but what would she do if this behaviour was not corrected? My mom wanted to get rid of rex for the biting but I wouldn'T let her.
You can't allow the puppy to keep biting because it isn't something they just grow out of they have to learn that this behaviour is unexceptable. Just try what I have suggested before it may work.

There are certain dogs that must be trained better than others dobermans for example are a strong breed they could do a lot of damage if not trained correctly. Don't put this off and just think it will eventually stop itself. Good luck with the training.

I agree with Rex's Mom. You have a dog that is in the dangerous breed category! You must deal with the biting issue NOW! You could find yourself in a bad situation once she gets older, and around other people and animals.

My dog was recently attacked by a dog that is in the dangerous breed category, that wasn't trained properly, and she was hurt badly. Not only physically, but emotionally also. She is a different dog now in many ways. So you must take every step necessary to make sure your dog is trained not to bite. Dobermans have very powerful jaws, and they can do serious damage. It could bite a child, and you might find yourself with a huge lawsuit on your hands.

I have owned two dobermans, and they are very intelligent animals. If the proper training is applied, you should be able to have happy socialized dogs, and you won't have to worry about the biting issue.