No, leeches will be killed by stomach acid after being eaten into the stomach, so it is impossible for them to reproduce in the stomach. Leech is a kind of leech that relies on sucking blood. There is a saying that after burning a leech to death, it will come back to life again when it encounters water. This is impossible.

Leeches prefer to live in moist places, such as wet grass or shallow waters. If a leech comes into contact with a living creature, it will stick to its surface, bite a small hole and suck blood. A leech's blood sucking is somewhat similar to a mosquito bite. You won't feel any pain when sucking blood. When the leech leaves, you will feel pain. In addition, leeches secrete a liquid with an anticoagulant effect, so wounds sucked by leeches will bleed more.

If we see a leech sucking blood, we must not kill the leech immediately. If the leech is forced to stop sucking blood, the leech's sucker will be left in the body, which will cause infection of the wound. So when you encounter a leech sucking blood, you can apply a little salt water or alcohol or other liquid on it, and then pat it, so that the leech will automatically fall off the skin. The wound must be disinfected and bandaged afterwards, otherwise it will be more likely to cause infection.

Although leeches do not cause any major harm, you should still be careful not to be infected with bacteria when you encounter them, and pay attention to sterilization and disinfection. In addition, when you are in the wild, it is best not to drink wild water. There may be some larvae in it. If they enter the body, they may cause diarrhea or other diseases.