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The small ones may die, but the big ones are hard to say, so pour hot water next time! When I was a child, I saw that the old people were pouring hot water.
That's a water bug, I've encountered it too, and some of it is even longer!
Bleeding in the birth canal requires a medical examination, and it is correct to have the doctor give advice to follow the doctor's instructions to protect the baby. There are many causes of bleeding during pregnancy, such as: eating foods that are not eaten during pregnancy, inflammation of the uterine cavity, low progesterone levels, etc.
In addition to blood, menstruation is mainly the shedding of the endometrium. One of the lines you're talking about is the endometrium, and if it can be opened, it's in pieces. Don't worry, I wish you good health!
Centipedes have legs, and roundworms don't seem to have evolved to this point! Roundworms in the stomach will often have stomach pain, and you can pull it out by taking some medicine to fight roundworms.
Is that a millipede? I have a lot of them at home, I don't know if you're not, you'd better send the picture, it should be fine. If it's a millipede, it should be harmless to the human body, don't worry!