Abstract: Worms or often calledSoil Transmitted Helminths (STH) is a disease of the human body caused by intestinal nematode worm infection. One of the transmission of this worm is generally through soil media. STH species include roundworms, whips, mines. Farmers as one of the professions in the community have a great risk of being infected with STH, which is more than 70%. The majority of agricultural land in Guntung Village supports working as a farmer. Factors that cause helminth infections are related to poor environmental hygiene and unhealthy lifestyles. This study aims to determine the description of infection with Soil Transmitted Helminths (STH) infarmer coconut inGuntung Village, Batu Bara District. This study uses observational research methods (non-experimental) with descriptive research criteria. The number of samples is 50 faeces fromfarmer in Guntung Village, Batu Bara District. The results of the stool examination by the flotation method found that 12 respondents (24%) were positively infected with STH, namely hookworm eggs. The conclusion of this study is the possibility of farmers who are positive because they come from other environments, not from agricultural land and soil in their home environment. Therefore suggestions for the community or farmers can increase knowledge about the transmission and prevention of STH infections, increase awareness to carepersonal hygiene as well as sanitation of the surrounding environment and being able to take deworming medication for treatment of STH-infected farmers.