When Does Pregnancy Rhinitis Start _best_ -

Most common time of onset. About 60–70% of PR cases begin during this period. The peak onset is at 18–20 weeks gestation . This timing correlates with rising estrogen levels (which increase nasal blood flow and glandular secretion) and a 40–50% increase in plasma volume, which maximizes nasal engorgement. Patients often report bilateral nasal obstruction that worsens when lying down.

While pregnancy rhinitis is harmless, you should contact your doctor if: when does pregnancy rhinitis start

The most defining characteristic of pregnancy rhinitis timing is its end. According to the Cleveland Clinic , the congestion typically vanishes almost as quickly as it arrived, usually resolving within as hormone levels stabilize. Why Timing Matters Most common time of onset