Hi All. I have a male bullmastiff that will be turning a year old at the end of this month and I was just wondering what type of physical changes I might see between age 1 to 2. How much more weight did your bullmastiff put on during this time? Does height usually stop increasing after the first month? How about head size? Thanks in advance! Here's a picture of my boy from about 6 weeks ago. His name is Meech.
Between 12 and 18 months will be your biggest growth in actual length,height and weight. Between 18 months and 24 months he will gain some weight but not close to what you have seen so far and by the lines there could be some growth up to 30 months. between 24 and 30 months you will see a maturing in appearance, and a lot of changes to his head. Between 30 and 36 month he will reach fully physical and mental maturity. Beautiful pup best wishes with him.
