Is it difficult to communicate when no one speaks the same language?

Is it difficult to communicate when no one speaks the same language?

When we speak the same language, it is effective communication because this way we can understand everything that we want to communicate. This is important in all areas of life, for example in the workplace, in the family, when we need to express how we feel sorry or if we have any discomfort in relation to health. I can only imagine a deaf person trying to explain in consultation with the doctor about how you feel or where it hurts, if he does not know the LESCO language is terrible truth.
I can imagine how difficult it can be to be in a country like China or Japan where the language is completely different from ours and do not know how to communicate. It must be traumatic. But it also happens that in countries that speak the same language as ours and as Colombia that many words have different meanings and may even incur a one offense when mentioned.