KATHMANDU, Nepal — After human traffic jams at the top of Mount Everest and an aggressive, unruly atmosphere that has been likened to “a zoo,” Nepalese officials said on Wednesday that they were considering changing the rules about who was allowed up the world’s highest mountain.

“It’s time to review all the old laws,” said Yagya Raj Sunuwar, a member of Parliament.

Until now, just about anyone could get a permit to climb Mount Everest. But this year has been marred by pileups at the top and a surge of inexperienced climbers.

Veteran mountaineers who recently summited described a “Lord of the Flies” atmosphere with mobs of people in huge down jackets precariously perched at the top, pushing and shoving to take selfies.

At least 11 climbers have died on Everest this year, making this season one of the deadliest ever. Many of the deaths were needless, veterans say, and the increasing number of rookie climbers who try to tackle Everest have made it more dangerous for everyone.