The new big hook pulling flag is more likely to suffer from rotten tail disease. Most of the rotten tail disease begins to fester from the middle of the tip of the tail and spreads rapidly to the base of the tail. The membrane is completely It rotted away, leaving only the tailbone, which looked like a broom.

The disease develops very rapidly and can lead to death if treatment is delayed. Yuyong medicine for treatment should be prescribed according to the instructions, and overdose is strictly prohibited. The cure rate of early symptoms is high, and the risk is higher in late stages.