Premenstrual tension is a condition characterized by increased;
- Emotional instability.
- Frequent headaches.
- Generalized edema.
Mastalgia that occur periodically and cyclically in the 7th to 10th days prior to menstruation
but disappear a few hours after onset of the menstrual flow.
Premenstrual tension occurs most frequently in women between the ages of 25 and 40 years.
Its origin is unknown, but it may be due to generalized fluid accumulation as a result of Na ion retention caused by increased steroid hormone activity during the latter half of the menstrual cycle.
The greatly increased nervous irritability is thought to be due to edema of nervous tissue generally, as well as to cerebral edema.