Why does this happen?
926460
You are NOT pregnant if you have not had sex.\n\nI've had that too, the brown spotting can be a sign of a period. It's nothing major. Go see a gyno and wear pantie-liners.
714709
it happens... happened to me...
726147
That is a good question I have always wondered that myself. SO I'm assuming it is normal since we both experience it. How ever I don't know what causes it.
790286
I've never had that happen to me.  You should have mentioned the application that happened on.\n\nMy guess is... it's a software bug.  You might need to reload the application.  Try that.
829551
Don't worry, it could be just some kind of added stress on you with school, sports, etc.\n\nIt happens, especially when you're younger like you are.
562145
That happens because of genes. Its heriditary. It doesnt cause anything as far as I know.
47974
It may be panic attacks, not always a known cause as to why the occur..can be in subconscience. I'd talk to your DR
135094
Maybe its from friction, with your clothing or something...
433314
Usual this does not just happen at one time of the day so if that is the case then it may be because of one or more of the things you have listed.  I suggest you eliminate them one by one ans see what happens.
928948
It's usually a sign of an infection.  See your doc.
1152180
This also happens to my speakers, ever since I moved to my new apartment.  It is radio frequency interference and apparently it is caused by nearby antennas or something like it.  IT can happen to any household speakers and even cell phones.
1001900
That actually happens to me sometimes. It's normally during my ovulation time or the week before I start my period. I asked my dr about it & she said it's normal. If it gets heavier or lasts over a week, that's when you need to worry & contact your dr.
247667
It happens all the time.  It shouldn't, but it does.
1045315
It happens all the time.  Next time try not to read so much into stuff, just go by what actually happens and what they actually say rather than all the things you think it might mean...
1022797
That is weird you might have some kind of gift. If it happens again then it may be some kind of gift if not, it might just be a coincidence.
1029052
It's not just English - it happens to every language!!\n\n(sigh...)
1133426
Hi,\n\nIf you are talking about the human body......Yes it happens. Probably because your food intake is right but a one time slipup has initiated it. My personal experience & i'm not even close to being a doctor.\n\nThanks & Regards\nVinod