Placenta is not edible and indiscriminate consumption of placenta may lead to diseases in the body such as AIDS and syphilis. As placenta contains estrogen and progesterone, if adults take it, it may increase the risk of disease, such as malignant tumors of the reproductive tract, due to excessive estrogen intake. Secondly, if certain infectious diseases such as AIDS and syphilis are contracted during pregnancy, they may be transmitted through the placenta, and if consumed, it will increase the chance of contracting these diseases. In addition, the placenta may be contaminated by a variety of bacteria during labor and delivery, which may have adverse effects on the human body, so in general the placenta should not be consumed. Therefore, unauthorized consumption of placenta should be avoided to avoid adverse effects.