Why does Hugh Laurie/Dr. Gregory House have a limp in "House M.D." (T.V Series)?

As above:
Why does Hugh Laurie/Dr. Gregory House have a limp in "House M.D." (T.V Series)?

Was it a motorcycle accident or something? :S

Please give as much detail as possible.

Thank you

if you watch the whole series you would know. he had a blood clot in his leg and there was damaged tissue

Caused by an infarction in his quadriceps muscle. When in hospital he be lived that he should wait and see and his wife and his doctor thought that they should operate as if they waited he may die. His wife gave permission to operate against his wishes and the operation caused irreparable damage to his leg. If they had waited it would have been better. That's also why him and his wife divorced.

He had an infarction in his leg, but no doctor could diagnose him. By the time he figured it out, the doctors wanted to amputate his leg. But he didn't want to so now he's missing part of his thigh muscle, so always in pain. A lot of the story is told in the episode 'Three Stories.'

We find out why House limps in episode #121, "Three Stories." We learn that one of the stories is about the infarction.

Also,

Just when I was thinking the show was in a rut, along comes this episode. Cuddy coerces House into taking the place of a sick instructor and lecture a bunch of young students. House presents the students with three case studies, all to do with leg problems. The episode jumps about in time, substitutes characters at will, and even has an Einsteinian moment where House explains to his team that time ultimately means nothing. For a moment or two, House envisions one of the patients as a popular Latina celebrity, Carmen Electra, and he and we get to see her with her pants off. It is a sublimely funny moment. As House's lecture progresses, we notice the auditorium filling up. Near the end of the lecture, the room is now SRO. House's team is in attendance, along with with Cuddy. House being House, he also figures out what has been making the regular instructor sick on a recurring basis. A truly brilliant episode. We meet a trio of students who will become the next Cameron, Foreman and the Aussie. In the process of House relating the story of each of the patients, he finally fills us in on his own leg trauma. We also meet House's former flame, played by the luscious Sela Ward, who will figure more prominently in Season Two.

And, a little more:
During a game of golf, he suffered an infarction in his right leg, which went undiagnosed for three days due to doctors' concerns that he was exhibiting drug seeking behavior (House was also unable to diagnose his own infarction). An aneurysm in his thigh had clotted, leading to an infarction and causing his quadriceps muscles to become necrotic.

House had the dead muscle bypassed in order to restore circulation to the remainder of his leg, risking organ failure and cardiac arrest. He was willing to endure excruciating post operative pain to retain the use of his leg. After House was put into a chemically-induced coma to sleep through the worst of the pain, Stacy(his ff at the time) decided to choose a safer surgical middle-ground procedure between amputation and a bypass by removing just the dead muscle. This resulted in the partial loss of use in his leg, and left House with a lesser, but still serious, level of pain for the rest of his life.