Objectives: To determine whether the socioeconomic and nutritional status of cured leprosy patients with residual deformity, and their household members, was lower than that of cured leprosy patients without deformity. Design: Cross-sectional study. Subjects: One hundred and ®fty-®ve index cases with deformity, 100 without deformity. Also 616 household members comprising 48% of the total members enumerated. Measurements: Nutritional status was evaluated using anthropometry. Disease characteristics, socio-economic parameters and household information were recorded using a questionnaire. Results: Index cases with deformity had lower community acceptance (P`0.001), and employment (P`0.001) than those cases without deformity. Households of index cases with deformity had a lower income (P`0.01) and a lower expenditure on food (P`0.05). The presence of deformity (odds ratio (OR): 2.1 ± 3.2, P`0.01), unemployment (OR: 2.3 ± 4.3, P`0.01) and female gender (OR: 2.4, P`0.01) signi®cantly increased the risk of index cases being undernourished, as judged by body mass index (BMI) alone, or BMI and mid-upper arm circumference. A low BMI (`18.5) in the index case signi®cantly increased the odds of other adults (OR 2.2), adolescents (OR 2.9 ± 3.8) and children (OR 2.2) in the household being undernourished. Conclusions: Cured leprosy index cases with physical deformity are more undernourished than index cases without deformity. This is associated with a reduced expenditure on food, possibly brought on by increased unemployment, and a loss of income. Undernutrition in the index case increases the risk of undernutrition in other members of the family.