Neonatal tetanus is caused by infection during the umbilical cord cutting after birth, typically occurring between 3 to 14 days after birth. Initial symptoms include crying, difficulty opening the mouth, and trouble breastfeeding, followed by symptoms like locked jaw, tense facial muscles, and spasmodic clenched fists. In severe cases, it can lead to respiratory difficulties. Currently, tetanus cases do not occur in deliveries at major hospitals. If diagnosed, treatment should be proactive.