You may not have any symptoms of a 'lost' tampon, at least not for some time.
You may notice symptoms of a vaginal infection - bad smelling discharge like fish or ammonia, unusual colour to your discharge, unusual texture to your discharge such as being watery, pain during sex, or irritation around your genitals. You may see symptoms of pelvic inflammatory disease such as bad pain in your abdomen. You may also see symptoms of Toxic shock syndrome, symptoms vary a lot from person to person but you'll certainly see high fever and low blood pressure.
If you suspect a tampon is still inside you then check, and remove it.
There is no trick to avoiding losing a tampon in your vagina. The string hangs outside the vagina. All you have to do is remember to remove the last one of your period.
You move the tampon string out of the way of your urethra, or you can use tampons without strings to avoid the problem all together.
Going swimming won't cause the tampon to get lost in your body. The vagina is a dead end, and the tampon has nowhere to go.
The tampon goes all the way into the vaginal canal - if that's what you mean by the muscle, as the vaginal canal is essentially a muscular tube. The whole tampon goes into the vagina and quite deep, it wouldn't even be near the vaginal opening once it is inserted so certainly wouldn't hang out. All that hangs out is the tampon string for easy removal, that is if you use a tampon with a string.
You would urinate as normal.Tampons go into the vaginal canal, whereas you urinate out of your urethra - thus tampons have no effect on your urinating. If you're using tampons with a string it's best to move the tampon string out of the way so it doesn't get wet as this can be uncomfortable and wondering around with a wet tampon string can make your genitals more warm/moist so more favourable to bacteria.
No, you cannot get pregnant from sperm on a tampon string. Sperm needs to go inside your vagina, on the string there is no medium through which the sperm can swim up into the vagina. You can be at risk of STI's/STD's though.
You simply pull the tampon string gently but firmly - or insert clean fingers vaginally to grab the tampon itself in order to remove. Once removed you wrap-up the used tampon and throw in the waste bin, or if you'reusing reusable tampons clean out in the sink. You can then insert a fresh tampon or reinsert the reusable tampon - although it's best to alternate with pads after tampon use.
BK Comedy Series - 2013 Tampon String 1-7 was released on: USA: 4 March 2013
Some tampons have strings in order to make it easier to remove the tampon. Not all tampons have strings, to remove you would insert clean fingers into the vagina to grab the tampon and pull out.
If you're using a tampon with a string then you just relax and pull firmly but gently on the string. If you're using tampons without a string then you insert clean fingers into your vagina and grab the tampon, then pull out. As long as you're relaxed and using tampons correctly there should be no discomfort.
Your tampon should be completely saturated with blood after 4-6 hours - if the tampon is dry when removing then you need to use a lower absorbency or switch to pads. If the string is getting blood on it some may be from blood lingering in the vaginal canal before tampon insertion, but it may also be that blood is simply bypassing the tampon. Try different TYPES (not just brands) of tampon, you may also want to consider menstrual cups which don't leak.
Eventually, you will lose circulation to your finger and it will change color.