**5. Conclusion**

This is a brief summary of the adverse effects found in the literature. There is no clear consensus about incidence, the most prevalent adverse effect, the intervention protocols, or experience of the therapist… As a conclusion, needling therapies are usual techniques in the outpatient care and complications are possible even considering all the precautions. Therapists have to know how to react, recognize the adverse effects and correct them as far as possible or refer the patient to the corresponding service, being always updated to new advances and familiar to the normal and variants of anatomy of the patients to avoid complications as much as possible. Caring the aseptic conditions and the communication with the patient to inform them about all the parts of the treatment with needling therapies are essential.
