Dairy cows are susceptible to gastrointestinal nematode infections, which may be associated with changes in animal health and milk quality. Among these parasites, strongyle-type gastrointestinal nematodes are frequently reported in dairy cattle. This study aimed to examine the association between the presence of strongyle-type eggs and body condition score (BCS), as well as selected milk quality parameters, including fat content, specific gravity, and organoleptic characteristics of dairy cow milk. A descriptive observational study was conducted using purposive sampling in a dairy farming area in Jabung District, Malang Regency, Indonesia. A total of 100 fecal samples were screened for strongyle-type eggs using the flotation method, and milk samples with corresponding BCS data were collected from 14 cows confirmed to be positive for strongyle-type eggs. Body condition score, milk fat content, and milk specific gravity were analyzed using the Mann–Whitney U test, while organoleptic characteristics (color, odor, taste, and viscosity) were assessed descriptively. The analysis revealed statistically significant differences in BCS, milk fat content, and milk specific gravity between cows with and without detected strongyle-type eggs (p < 0.05). Infected cows showed lower BCS and milk fat content, while milk specific gravity was higher. No notable differences were observed in organoleptic characteristics. These results indicate an association between the presence of strongyle-type eggs and certain milk physicochemical properties and BCS; however, causal relationships cannot be inferred due to the observational study design, small infected sample size, and unmeasured potential confounders such as lactation stage, feeding regime, and genetic variation.