Help! Bunny has short hair patches

[Lunathebunny]

Hi, I need help with my bunny. Over last few days he developed patch of short hair on his back.
He's castrated and over past week shows signs of false pregnancy (making nest, being protective and agressive, digging). Otherwise he seems healty and happy, he's just as active as alway, he eats normaly and has healthy diet.
Could it be connecteed with false pregnancy and can it be harmful? Should I take him to doctor?

 

[helena]

Is your rabbit male or female? You used "he" a lot. Males do not have false pregnancies. Yes, it can be due to false pregnancies. Why is My Rabbit Losing Patches of Fur? — Rabbit Care Tips Here is a source with more causes.
Hair loss (alopecia) in rabbits - PDSA
If it is just a false pregnancies, don't be worried. If it is due to another cause, (that you know of) you could take her to a vet or ask for more info here.

 

[Lunathebunny]

Thank you, I am lot calmer now.
Also my bunny is a male, but due to being castrated he's having false pregnancy. I talked about this with his vet last year and she confirmed this. It's odd how nature works at times.

 

[zuppa]

Males also can have false pregnancy. Those patches could be like overgrooming or kind of molting, some rabbits look a bit strange while molting. Could be something else as well can you post some photo here? How old is he and how long is he with you? Is there any flaky or irritated skin on him?