What is the most common form of tetanus?

What is the most common form of tetanus?

• A. Local tetanus
• B. Cephalic tetanus
• C. Generalized tetanus
• D. Neonatal tetanus

Answer: (C)

Generalized tetanus is the form most commonly encountered because the toxin from Clostridium tetani travels from the wound into the central nervous system and disrupts inhibitory pathways throughout the body. Tetanospasmin blocks GABA and glycine release, removing inhibition on motor neurons, which leads to widespread, symmetric muscle rigidity and painful spasms rather than staying localized to one area. Clinically this typically starts with the jaw (trismus) and neck stiffness, then progresses to generalized muscular stiffness, back arching, and spasms that can be triggered by minor stimuli. Other forms exist but are much less common. Local tetanus stays confined to the muscles near the wound; cephalic tetanus is rare and involves cranial nerves, often after an ear infection; neonatal tetanus occurs in newborns due to infection of the umbilical stump, and while a major problem in some regions, it is not the most frequent presentation overall.

Generalized tetanus is the form most commonly encountered because the toxin from Clostridium tetani travels from the wound into the central nervous system and disrupts inhibitory pathways throughout the body. Tetanospasmin blocks GABA and glycine release, removing inhibition on motor neurons, which leads to widespread, symmetric muscle rigidity and painful spasms rather than staying localized to one area. Clinically this typically starts with the jaw (trismus) and neck stiffness, then progresses to generalized muscular stiffness, back arching, and spasms that can be triggered by minor stimuli.

Other forms exist but are much less common. Local tetanus stays confined to the muscles near the wound; cephalic tetanus is rare and involves cranial nerves, often after an ear infection; neonatal tetanus occurs in newborns due to infection of the umbilical stump, and while a major problem in some regions, it is not the most frequent presentation overall.