Clinical Research Directory

Inclusion Criteria: * For Mothers: Being a mother who has completed the 24th postpartum hour and is being followed up to 72 hours. Having had a first pregnancy or first live birth. Being identified as experiencing early breastfeeding difficulties. Volunteering to participate in the study. Being 18 years of age or older. Not having a psychiatric disorder or serious chronic illness. For Infants: Born from a singleton pregnancy. Gestational age ≥ 37 weeks (term infant). Postnatal health status must be stable and not require intensive care. No congenital anomalies or serious congenital diseases. Exclusion Criteria: * For Mothers: Mothers with serious medical problems or contraindications related to breastfeeding (e.g., severe wound or infection after breast surgery). Mothers who experienced severe complications during childbirth (e.g., hemorrhage, sepsis, conditions requiring emergency surgery). Mothers who do not agree to participate or do not sign the form. For Infants: Serious physiological problems that would prevent receiving the heartbeat sound (e.g., severe hearing problems, severe respiratory problems).