Does a bladder infection always spread if you don't take antibiotics? asking for a friend who can't in with doctor right away.

Here are some ...: Known to most if not all, our body is constantly exercising its defense immune mechanism to fight and fend of unwanted invasion such as bacteria, virus, etc. In such invisible battles, sometimes we win and the other time we lose, largely depending on personal defense ability, which chiefly results from quality healthy lifestyle without overindulgence and obsession, not drug, sympathy, but emapthy.

Can spread to kidney: or rarely to blood stream. If cannot see doctor go to urgent care.

Not always: Hi. Your friend should make a serious effort to to seen so a urinalysis and culture can be done to determine whether a bladder infection exists or not. Regardless, in the meantime, she should drink copious amounts of water or cranberry juice. Some bladder infections spread to the kidneys, a much more serious infection. Good luck to her!