The dangers of ticks Ticks, also commonly known as grass ticks, have recently had an epidemic peak of fever with thrombocytopenia syndrome, the cause of which is a disease spread by tick bites, mostly in older people in hilly mountainous areas, which can cause fever that does not subside, general malaise, and a decrease in peripheral blood leukocytes and platelets when checked. Ticks are vector organisms that often spread pathogens (viruses, bacteria, parasites) by biting and sucking blood to make people sick. Ticks can transmit a variety of diseases. Ticks are known to carry 83 viruses, 31 bacteria, and 32 protozoa, most of which are important natural epidemics and zoonoses, such as fever with thrombocytopenia syndrome, forest encephalitis, tick-borne typhus, Lyme disease, and human granulocytic anaplasmosis, which pose a great risk to human health and animal husbandry. People with a history of tick bites or field activities should seek early medical attention and inform their physicians of relevant exposure history once they develop suspected symptoms or signs such as fever, and should remain alert for tick-borne diseases in infected areas. Even if a tick bite is not detected, persons returning from a trip to an infected area should always be monitored for physical condition.