The diagnosis of premenstrual syndrome (PMS) is made largely on the basis of the presenting signs and symptoms and particularly on the fact that these occur in close association with the menstrual period.
There are no unique physical findings or laboratory tests required to confirm the diagnosis. However, the physician may order investigations for a thyroid test to rule out thyroid disorders. Similarly, the treating doctor may also want to rule out other illness with similar presenting symptoms such as depression, migraine, chronic fatigue syndrome, etc.
The patients can help the physician in diagnosing the condition by maintaining a diary that keeps a track of:
The American College of Obstetrics and Gynecology states that the following conditions must be fulfilled in order to diagnose premenstrual syndrome (PMS):