Axel turned 1 on December 20th and only recently have I noticed his head is looking like an adult and filling out a bit. He has started to fill out a bit in his body as well but still looks like he doesn't have much for shoulders as excess skin still flops around as he runs. Over the last 3 ish weeks I have noticed that Axel has now become boisterous. He used to be a calm chill dog with some minor issues such as stealing things but now he is much worse! I just keep saying he has hit adolescent years and I keep trying to keep things out of reach so he can't steal in the first place. But that is really hard to do when my OH just doesn't follow through. He basically hates Axel now that he is boisterous and is always mad at him. It quite frankly upsets me. He never grew up with dogs, where as I have, so I'm more patient maybe? Axel has been wonderful at day care until this past week. One day he was the star he has always been then the next day I'm told that he his food aggressive now and won't let dogs near the water bowl if he is drinking out of it and he has started humping again. I was told that if he gets worse then he is now then he can't continue to go. They told me to neuter him because that is why he is acting the way he is. Well, I left in tears. To be told literally the day before that he is wonderful, and the only young dog to be allowed in with the puppies because he's so kind and gentle, to the next day, being told he's aggressive and crazy... I have been so upset for a week now just trying to get over it. But I'm still just as upset. So I took Axel to a store today to see how he behaved around people and new things.. he did great! So much better since the last time I took him there. He was so sweet to everyone, no barking, no pulling, didn't get excited when kids ran past him. Just very well behaved. So then we headed to the vet to discuss neutering. He was very curious and sniffing and whining in the exam room, which isn't like Axel. Well least not until he changed over the last few weeks. The vet said that Axel is done growing, he won't grow anymore, his head is the size it will be for ever now. Said that neutering will calm him down a bit but he is a teenager so he will still be hyper. He said it will stop humping and territorial issues that we are having at day care. Just everything I read says that he won't truly be done growing until 18 months, so if I neuter him now, will he not continue to grow? Will he not get a bigger head? Or is his head done growing? Will he not get good muscle mass if neutered now? I sadly do have to rely on daycare for another year so if they won't allow him because of behaviours and not being fixed I feel like neutering Axel is just what I have to do. Axel is still so tall and lanky, but maybe he just won't look like his parents who were stocky. I just thought he would fill out over the next year or two but after visiting the vet today I feel like that won't happen. i guess my last question is for those who have neutered your lab, did they bulk up at all after?