After brain aneurysm surgery, coitus is possible, but it must be clear about the change of one’s own condition, so as to be able to be more conducive to the discovery of some of one’s own reactions. Generally speaking, after aneurysm surgery, coitus can be carried out only after 3 months. Because after 3 months, these blood vessels grow relatively firmly, and the aneurysm generally will not recur, like this case can be cohabitation, but many people are relatively anxious, there may be 1-2 months will appear in the case of cohabitation. At this time, we must pay attention to the patient’s emotion, physical strength and head symptoms, because very often coitus is a relatively high intensity training, and sometimes over-training will cause the blood pressure in the body to rise, and in some cases again cause the aneurysm to rupture. Therefore, in order to be safe, it is recommended that patients have intercourse 3 months after the aneurysm, and before having intercourse, they must have a corresponding review and control their blood pressure.