For patients with prostate enlargement, a-blockers, 5a reductase inhibitors and other drugs should be applied according to different conditions. 1. a receptor blocker: common drugs include terazosin, doxazosin and alfuzosin, etc. They have better efficacy for patients with mild symptoms and small prostate enlargement volume. Its main adverse reactions include weakness, dizziness, postural hypotension, nasal congestion and impotence; it should be noted that for those who are allergic to this product, this drug is prohibited. 2.5a reductase inhibitors: common drugs include finasteride, dutasteride, etc. They can be used in combination with a-blockers, and have better efficacy for patients with severe symptoms and larger prostate enlargement volume. Some patients may experience adverse reactions such as low libido, impotence, palpitations, depression, anxiety, etc. after using the drug; it should be noted that those who are allergic to any components of the drug should be prohibited from using the drug; special groups such as pregnant women and children should also be prohibited from using the drug. The patient’s condition is different, the specific medication program, must follow the doctor’s instructions; in the use of the drug after any adverse reactions, must promptly consult a doctor for disposal.