Why does it tickle when I itch my foot?
537975
Because the dog rolls around in dead things.
168361
Im not really sure...I can tickle my own feet..i dont laugh but it feels kinda funny like i want to laugh.
957295
It is probably winter itch: http://wellness.uwsp.edu/MedInfo/Handouts/Winter%20Itch.pdf\n\n1. Take a quick shower, not hot water\n2. Put Vaseline on legs while still wet
297917
It has to do with feedback. Whether you acknowledge it consciously or not, you are aware of the movements of your different body parts, what they are doing, etc, even if your eyes are closed. Even if you are deaf. If I remember right, this is called propiocentrics (don't quote me though). So if you touch your own arm, you not only feel your arm being touched, you feel that your hand is touching your arm, which confirms that it is you doing the touching. This is feedback.\n\nThis is why a numb limb can be very creepy. Ever wake up with your arm asleep and think someone else's arm is hanging over you? It's a rather common occurence. The feeling of numbness results partly from a lack of feedback. If your arm is numb, you can't confirm that you are touching that arm (unless you look, but that's only a substitute for sensory feebback).\n\nSo if you will notice, you can be tickled by a lot of different things. Feathers, hands, pretty muchh anything that's not too hard and pointy poking you the right way will tickle, except for your own hands. For some reason, this feedback interrupts the tickle reflex. I don't know why, but it could be because tickling is a social activity. It mihgt be something meant to be used in play, to strengthen social bonds, or it might be a way the body warns you it is being attacked. Either way, it would serve no purpose to tickle yourself. Those are just guesses though (and not very good ones).\n\nThe simplest answer is sensory feedback inhibits the tickle reflex.
165516
Most of us have a ticklish spot somewhere on our bodies, and it is usually pretty easy to find. For some it's just above the knee, for others it's the back of the neck, and some of us go into fits of laughter if someone grabs our sides. Laughing when another person tickles you is a natural reaction. Scientists have discovered that the feeling experienced when we are tickled causes us to panic and is a natural defense to little creepy crawlers like spiders and bugs. Slight tickles from insects can send a chill through your body letting you know something is crawling on you. \nThat same ticklish feeling sends us into a state of panic and elicits a response of uncontrollable laughter if a person tickles us. It's the moment that you least expect to be tickled and are that causes you to feel extremely uneasy and panicked, which leads to the most intense ticklish feeling. Even if you do know that you are about to be tickled, the fear and unease of someone touching and possibly hurting you causes you to laugh. Some people are so ticklish that they begin laughing even before they are touched. \n\nSo, if someone else's touch can tickle us, why can't we tickle ourselves? Much of the explanation for this question is still unknown, but research has shown that the brain is trained to know what to feel when a person moves or performs any function. We aren't aware of a lot of the sensations generated by our movements. For example, you probably don't pay much attention to your vocal cords when you speak. For the same reason, we can't tickle ourselves. If we grab our sides in an attempt to tickle ourselves, our brain anticipates this contact from the hands and prepares itself for it. By taking away the feeling of unease and panic, the body no longer responds the same as it would if someone else were to tickle us. \n\nBrain scientists at the University College London have pinpointed the cerebellum as the part of the brain that prevents us from self-tickling. The cerebellum is the region located at the base of the brain that monitors our movements. It can distinguish expected sensations from unexpected sensations. An expected sensation would be the amount of pressure your fingers apply to your keyboard while typing. An unexpected sensation would be someone sneaking up behind you and tapping you on the shoulder. While the brain discards the sensation of typing, it pays a lot of attention to someone tapping on your shoulder. The difference in reactions from expected to unexpected is a built-in response that probably developed in early human history to detect predators. \n\nAlthough we are not able to tickle ourselves unassisted, there is a way to trick the brain by using a robot tickler. That's right. With all of the know-how of science and technology, a robot has been designed to allow people to tickle themselves. The same British scientists mentioned above have designed a machine that enables you to tickle yourself by remote control. To use the machine, a person lies on their back with their eyes shut. The robot is located near the person with a piece of soft foam attached to a plastic rod that is controlled by a remote control joystick. When the person activates the rod, the robot will react after a short delay. Even with delays as short as a fifth of a second from the time the person activates the rod until the robot tickled the person's hand, subjects have described the sensation as the same as another person tickling them. So, in a sense, you could tickle yourself with a robotic assistant.
445704
It's a nerve reflex which is unique to you. Some people are ticklish on a specific place on their bodies which triggers a laugh response while others aren't. The same goes for your ear/s, you have a unique nerve ending which triggers a cough response!
71905
It can increase the anxiety you feel that causes the laughing and squirming and uncomfortable feeling you have when someone tickles you. You associate that word with the uncomfortable feelings of being tickled in the past. Almost like a flashback from past experiences.
1027179
My feet do this as well.  So do my brothers.  I have tried lotions, pedicures, and fancy foot creams but nothing works.  My doctor has never said that he thinks there is anything wrong.  I would not worry.  But it is pretty gross huh?
180048
cause ur damaging your epidermis \ncausing an irritation.. which in turn also itches.
310503
The feeling of being tickled is a reaction of not wanting to be touched. This is why the exact same touch is ticklish from one person and not another. Laughing is the response to show that intellectually you don't mind but subconsciously you do.  Since your touching yourself you don't feel threatened.
522584
Jock itch is caused by the same funk that causes athletes foot. Smear on some lamisil or whatever. Might save you from having to drop your britches for a doctor. Dont shave them either; its itchy when it grows back. Best wishes.
1033212
The bottoms of my feet and my balls are especially ticklish. I suggest you be creative if you really wanna tickle me. Maybe use a feather...
641657
10 out of 10 !  The middle of my sole is the \n tickliest...it drives me nuts
392744
Why are you playing with or pressing your belly button to begin with?!?...So you cannot blame us if we are thinking the way we are!....Were you cleaning your belly button?  If so, then I can understand.  There are nerve endings there almost like the bottoms of some folks feet.  Some are ticklish there and some are not!
1001408
It's the release of histamine during the immune response that causes you to itch.
402491
an itch is a misfire of a nerve ending.(i think).  its along the same lines of why you can feel like you're wiggling your toes after you have your leg amputated.(lol)
261481
The element of surprise! your brain doesn't know when someone is going to tickle you, unlike if you tickle your self your brain knows what and when it's going to happen\nor for more info go here:\n  http://www.livescience.com/humanbiology/050628_brain_tickle.html