May refer to:
- Tetany is variable intermittent muscle contraction.
Causes
- Stricnine poisoning.
- Hypocalcemia
- For example, due to:
- Parturition
- Hypothyroidism
- For example, due to:
- Glycine disorders, in:
- Humans
- Knowns as startle disease or hyperexplexia.
- Causes sudden contraction of primarily antigravity muscles
- Arabian horses
- Humans