我会通过肛交感染HIV吗？

Yes. In fact, anal sex is the riskiest type of sex for getting or transmitting HIV.

HIV can be found in certain body fluids—blood, semen (cum), pre-seminal fluid (pre-cum), or rectal fluids—of a person who has HIV. Although receptive anal sex (bottoming) is much riskier for getting HIV than insertive anal sex (topping), it’s possible for either partner—the top or the bottom—to get HIV. The bottom’s risk is very high because the lining of the rectum is thin and may allow HIV to enter the body during anal sex. The top is also at risk because HIV can enter the body through the opening at the tip of the penis (or urethra); the foreskin if the penis isn’t circumcised; or small cuts, scratches, or open sores anywhere on the penis.