evidence: Geckos are an extremely safe pet, and are a good choice as a family animal. The worst case scenario is that you may occasionally experience a small bite from one, but this is not dangerous. There are actions you can take that make this much less likely to happen, and I will talk about these later in this post. [...] There are no venomous geckos. Their bites are in no way poisonous, and they have no other venomous weapons in their armery. [...] Geckos carry no diseases that are harmful to humans, and they are not venomous. They may even make your environment more safe by eating bugs and insects that may otherwise be exposing people who live in the house to a range of diseases.