A 3-month-old Bernese Mountain Dog is generally considered relatively easy to care for. At this age, the puppy has typically completed its primary vaccination schedule, resulting in a stronger immune system and improved digestive capabilities, making feeding much more straightforward.

Indeed, 3-month-old Bernese Mountain Dogs are manageable as long as you understand their developmental needs. Because they have received most of their vaccinations by this stage, their resistance to viruses is significantly higher, which reduces their chances of falling ill.
When caring for a 3-month-old Bernese Mountain Dog, ensure they have an adequate supply of fresh, clean drinking water. Feed them three meals a day, maintaining a consistent schedule and high-quality, balanced diet. In terms of health, keep up with their routine deworming and vaccination schedule. Also, maintain a clean living environment for them. Furthermore, puppies at three months are ready for basic training. This is an excellent time to teach simple commands and establish good habits like potty training.