My 12 old female lab has hip problems. Her left hip is the problem which I am treating. However, about 2 days ago her left leg has become quite swollen. It was not injured, but it simply became swollen and the condition continues. It does not hurt her if I touch it, but I am very concerned.
Swelling can be because of varies conditions like an internal injury or trauma, insect bite, blood flow problems like blockage etc need to get it diagnosed by a pediatrician hope you find this helpful