mandarin fish has thorns, but there are only big thorns, not small thorns, so it is very suitable for lazy people to eat. However, it should be noted that there is a sharp thorn on the dorsal fin of mandarin fish, which is a little toxic. After being stabbed, it may cause swelling and pain, fever and other symptoms. Therefore, if it is stabbed, it is necessary to squeeze out the blood in time and rub some iodine to avoid infection.