What age does an Affenpinscher stop growing?

Affenpinschers typically stop growing around the age of one to one and a half years. However, individual dogs may vary slightly, with some reaching their adult size a bit earlier or later. 

It’s essential for pet parents to monitor their Affenpinscher’s growth and adjust their diet and exercise accordingly to ensure proper development. Regular check-ups with a veterinarian can also help track their growth and overall health during this critical period.