Ginger (Zingiber officinale Roscoe), a popular herbaceous plant, has been generally used as a flavoring agent and herbal medicine for centuries. The main components of ginger rhizome are corbohydtrates, lipids, essential oils, terpenes and phenol compounds such as shogaol and gingerol. This systematic review aims to provide a comprehensive discussion in terms of the clinical effects of ginger in all reported areas. Clinical applications of ginger with an expectation of clinical benefits are receiving significant attention. The consumption of the ginger rhizome is a typical traditional remedy to relieve common health problems. Ginger shows the wide range of pharmacological and biological potential in the prevention and treatment of various diseases, like colds, nausea, arthritis, migraines, diabetes, allergy and hypertension.