Reproductive side effects such as abnormal ejaculation disorders and decreased libido may occur after taking Dutasteride. Dutasteride belongs to the category of 5 alpha reductase inhibitors and is generally used for the treatment of prostate enlargement in men, and its long-term application can appropriately reduce the size of the prostate gland. Reproductive side effects such as ejaculation disorder and male libido reduction may occur. In addition, drug metabolism may lead to impaired liver function and side effects such as rash and itching, but the chances of these side effects occurring are generally relatively small. Overall, Dutasteride is a relatively safe drug with few side effects. There are significant individual differences in the occurrence of side effects, and the drug needs to be used in accordance with medical advice.