Fifa will consider allowing three yellow cards before a suspension in future World Cups following the record number of cautions at the 2006 finals.
Sixteen bookings were issued during Portugal's win over Holland
Two bookings in the group stage or knockout phase currently leads to a one-match ban for a player.
"In future perhaps there should be three yellow cards in a round before a suspension. It's something we will take up," said Fifa president Sepp Blatter.
Some 27 red cards and 331 yellows had been issued after 60 of the 64 matches.
Blatter said the three-booking rule would help stop situations where players on one yellow card are genuinely unfortunate to pick up a second in the semi-finals and miss the final through suspension.
He added: "The referees should also first tell a player to calm down and then give him a yellow card the second time if it is not a very serious foul."
Blatter also said players who try to halt attacks by opposing teams, by calling for treatment on the pitch, were "cheating".
He said: "This is abusing the system. Players are just lying down and inviting the other team to kick the ball out.
"This is increasing and it is nothing more than cheating, and this is something we will look at in the future."
Meanwhile, Blatter said football had been cleared of any involvement in the doping scandal that has rocked Spain.
"I have heard from the minister of culture and education and he has said no football players or tennis players from Spain or foreign countries are involved in this operation," said Blatter.
Blatter confirmed Brazil were almost certain to be the hosts of the 2014 World Cup, which is to be played in South America under Fifa's rotation system.
No other South American country has expressed an interest but Brazil still need to satisfy Fifa it has the necessary laws and potential facilities available to host the tournament.