the rules of judo. The medical team is not allowed to enter the fighting area without permission from the mat judge, and if a contestant receives medical treatment he automatically forfeits the match. Nosebleeds, for example cannot be treated by the medical team; the contestant must fix it him or herself with materials provided by the medical team. Proper procedure is stuffing cotton balls up the nostrils, while applying tape around the head. If a contestant is rendered unconscious without a choking technique, and is unable to wake up, the medical team has to take immediate action and they can't wait for the contestant's consent; he or she forfeits the match automatically. A contestant can ignore any injuries he or she has, and keep fighting. This requires that it is not of any discomfort to the opponent, e.g. bleeding over an opponent can cause penalties. If the bleeding has been tried to be stopped three times, with no effect, the match is forfeited. History Effect of Russian gripping strategies on the grip-related rules. The technique known as kani basami was banned in 1980 after Yasuhiro Yamashita suffered a broken leg while being thrown with it. Motivation for banning of head-dives. References Sources The IJF rules are the official published reference for the rules of judo competition (see External links, below). However, rules can be changed by committee decision between official releases of the published rules, and these are not published on the IJF site. Mastering judo by Masao Takahashi et al., explains a number of aspects of the rules. General rules of competition, etiquette, and the penalty system are covered in Chapter 2. . The first chapter of Competitive judo: winning training and techniques, by Ron Angus, is devoted to explaining a number of aspects of the rules. . External links IJF (International Judo Federation) Rules and Referee Guide Rules Sports rules and regulations by sport