The effect of olanzapine on sperm is currently unclear, there is no evidence-based basis for this product is the main treatment of bipolar disorder manic episodes, schizophrenia and other evidence. Olanzapine is an antipsychotic, a western drug, the common preparation is tablets. The effect of olanzapine on spermatozoa is currently unknown, and the effect on fertility is unclear, with no relevant evidence-based rationale. It is mainly used in the treatment of schizophrenia, depressive episodes of bipolar disorder, and manic episodes of bipolar disorder. Adverse effects of olanzapine are commonly associated with leukopenia, weight gain, somnolence, constipation and dry mouth, decreased libido, male erectile dysfunction, and weakness. Contraindications are patients at risk of narrow-angle glaucoma and those who are allergic to it. Precautions include the use of this product is not recommended for the treatment of Parkinson’s disease and psychosis associated with dopamine agonists. If there is a need to use this product, it should be applied under the guidance of a physician, do not self-medicate or increase the dosage without authorization, to avoid causing adverse consequences.