The Relationship between Mother’s Baby Care Skill with Incident of Diaper Rash in Desa Ngumpul, Jogoroto, Kabupaten Jombang Dian Puspitayani1 & Zakiah2; Suyati3 Prodi D-III Kebidanan FIK UNIPDU Jombang puspitayanidian@gmail.com 085746052248 ABSTRACT Backgroud The use of diaper for baby is the most practical way, effective and hygienic to accommodate urine and feces from spreading during urination and defecation. But actually, the baby's skin is not ready to adapt effect that caused by prolonged contact with urine and feces when using diapers. Skin problem that may occurred for baby such as skin rash known as dermatitis diapers or diaper rash. Diaper dermatitis is a skin problem in the form of inflamed reddish spots with a hard scaly skin, nodules, moreover blistered skin itching and sores. Baby's skin is relatively thin and has rudimentary protection functions, that caused babies are more susceptible to infected skin disorders.Thus,to avoid diaper rash, it is necessary to take care properly and appropriate. Objective The purpose of the research was to study relationship between mother’s baby care skill with incident of diaper rash. Methods The research method was analytic cross sectional design. Samples of this research include 48 mothers and their baby aged 0-12 months using a diaper with total sampling technique. Data collection was obtained by interview and observation. Data analysis used Mann Whitney performed tests with significance level α = 0.05 with SPSS statistical program. Results Results from 48 respondents, mother with good capability care baby skill 42 respondents 87.5% and had no diaper rash. Mother with no capability care baby skill 8 respondents 16.7% and 6 of them had diaper rash 12.5%. Mann Whitney statistical test analysed 0.041 coefficient α < 0.05, showed H0 rejected and H1 accepted. Conclusion Most of the mother have good capability care baby skill so there is little incident of diaper rash in Desa Ngumpul, Jogoroto, Kab. Jombang. Keywords : Mother,baby care skill, diaper rash