During sexual intercourse, sudden syncope is called sexual syncope. This situation is not common at ordinary times, only for brides with severe anemia, weak constitution and high tension when sharing a room. This is because the first sexual intercourse on the wedding night has a high degree of excitement information about the whole body. This stimulation information excites sympathetic nerves, increases adrenaline secretion, and sharply increases the levels of serotonin and catecholamine in the body. These substances can cause vasospasm and contraction of the whole body, and at this time, transient symptoms of cerebral ischemia and hypoxia may occur, and the cerebral cortex produces protective inhibition, and then faints. First-aid measures If you have fainted, the groom should immediately stop sexual intercourse and calmly take the following emergency measures: let the bride's head lean to one side, lie flat on the bed, raise her lower limbs 15 degrees, then pinch the middle and tenth straight points with the tip of her thumb, or let her smell them with ammonia water to wake up the bride. Precautions 1. Usually, brides with weak constitution have a high degree of tension when sharing the same room, such as dizziness, pallor, sweating, etc., which may be a precursor to sexual syncope. At this time, it is best to stop sexual intercourse, stabilize your mood, and then drink some sugar water and eat some snacks. 2. In case of syncope, you should also go to the hospital in time after first aid, so as to find out the reason and treat it in time. 3. When having sexual intercourse for the first time, the man should be considerate of the woman, and sexual intercourse should be carried out slowly, not rashly; If you fail once, you can try several times. If you fail repeatedly, you should ask a doctor to find out the reason, so as to avoid the woman's excessive tension and reduce the occurrence of syncope.