Bending Back
One of the most serious signs of tetanus is perhaps the bending of your back. This condition is also known as opisthotonus. It is basically caused by muscle spasms and excessive tension in this area. Such spasms would lead to an involuntary position in some bridging regions. When the issue progresses and becomes serious, it might even break some bones on your back. Dislocated joints would also be a possible complication. Since this is a serious symptom, make sure to visit your doctor as soon as possible to prevent further troubles. [8]
