There is no scientific reason why it is more difficult for women to transmit HIV to men, and there is no great difference between the chances of men and women contracting the disease. AIDS is a sexually transmitted disease (STD), a chronic disease caused by human immunodeficiency virus (HIV) infection that results in a decline in the body’s immune function or lack of immune function, which leads to a variety of opportunistic infections. It is mainly transmitted through sexual transmission, mother-to-child transmission, and blood transmission. Both men and women may be infected with HIV if they have sex with the patient, so there is no such thing as it being more difficult for a woman to transmit HIV to a man. If there is a high-risk contact should go to the hospital in time to check, clear diagnosis, so as not to delay the disease.