The inability to smell.
It is a primary symptom of gingivitis.
The primary symptom of ptosis is a drooping eyelid.
Abdominal cramps is the primary symptom of giardia infection.
The only symptom of primary amenorrhea is delayed menstruation.
In secondary amenorrhea, the primary symptom is the ceasing of menstruation for at least three months.
Anosmia is the inability to smell or the inability to perceive separate odours.
Anosmia is the loss of the sense of smell.
Flushing
Flushing, vasodilation, and itching are the primary indicators.
No sense of smell
I suffer from congenital Anosmia and have actually done quite a bit of research on the matter. I hate to say it, but I have looked at many websites saying congenital Anosmia has no cure. I hope you didn't ask this question because you have congenital Anosmia, because it's awful.
The doctor asked the man to describe the primary symptom. A symptom is not always a sign of chronic disease but could be an acute infection. My main symptom was dizziness.