First, the proportion of male players in the game is relatively large.
Although in some competitions, the number of female spectators at the scene may be equal to that of male spectators. But in mainstream e-sports games, such as dota2, CS: GO, League of Legends, Jedi Survival and so on. The proportion of male players in the player group is actually very heavy. Even in some games, male players are several times that of female players. Under such circumstances, there are naturally more professional players born from male players than from female players. It can be said that there are many male professional players because there are many male players. After all, any professional player starts by becoming a player.
Second, playing professional e-sports requires high-intensity training.
In addition to the large proportion of male players, more professional players are born, and the high-intensity training required to play professional e-sports is another factor that discourages female professional players. You know, professional e-sports players are far less relaxed than people think. They don't earn their wages by playing games every day, but they have to carry out high-intensity training. For female players, there are differences between them and male players due to physiological factors, and it is difficult for female players to persist in this long and boring training, which leads to the scarcity of female players.
Generally speaking, professional e-sports female players are scarce, on the one hand, because there are more male players than female players, on the other hand, because playing professional e-sports requires high-intensity training.