Constipation in a dog

question:
Hello! My name is Ania, I have a mongrel dog, he is 2 years old, he is a type of a sleeper, for some time (about 2 weeks) he has a problem with pooping, he whines and sometimes even squeaks. I have read on various sites that the dog has constipation and that I should change his diet, but it does not help. Please, write me what I should do. Thank you in advance

Answer:
A change of diet is one of the elements. Another is the introduction of preparations to stabilize intestinal function (flaxseed, paraffin oil), or even drugs. Concrete advice can be given, after knowing the exact, diet, after checking possible digestive problems (blood tests). Then setting the diet, evaluating its effectiveness, possible changes and corrections. Such detailed advice can not be accurately given via the Internet.