A 12 year-old-boy who played computer games a few hours a day for several months with his laptop on his legs developed permanent sponge-patterned discoloration on his left thigh. Though he knew it got hot, he didn’t adjust the laptop.
This is why scientists everywhere recommend that if something feels like it is hot and burning your skin, you should get away from it.
He is one of 10 patients documented in a recent study who reported the condition, which has previously been seen on people’s legs who work in front of hot stoves or old people with electric blankets. The heat comes from the laptop’s processors. In addition, placing a laptop on your lap may block the exhaust fan.
If you use a laptop for a prolonged period of time, it is recommended that you put some kind of protection between your tender legs and the mean old laptop bottom.