Why does nosebleed occur during pregnancy?

In general, nosebleeds during pregnancy may be caused by hormonal changes, dry air, allergic rhinitis, gestational hypertension, thrombocytopenic purpura, and other factors. If experiencing any discomfort, it is recommended to seek timely medical consultation and treatment at a qualified hospital. Detailed explanations are as follows:

1. Hormonal Changes

During pregnancy, elevated estrogen levels cause nasal mucosal blood vessels to dilate and become congested, increasing the fragility of blood vessel walls, which can easily rupture and bleed. To alleviate this, physiological saline nasal sprays can be used to moisturize the nasal mucosa, and forceful nose-blowing should be avoided to reduce nasal irritation.

2. Dry Air

In low-humidity environments, the nasal mucosa loses moisture more quickly, becoming dry and fragile, which can lead to nosebleeds. A humidifier can be used indoors to maintain air humidity between 40% and 60%. Additionally, drinking more water helps prevent nasal dryness.

3. Allergic Rhinitis

Exposure to allergens can trigger inflammatory reactions in the nasal mucosa, causing swelling and itching. Nosebleeds may occur easily during nose rubbing or sneezing. Under a doctor's guidance, medications such as budesonide nasal spray, mometasone furoate nasal spray, or loratadine tablets can be used to relieve symptoms. Avoiding allergen exposure is also essential.

4. Gestational Hypertension

Elevated blood pressure during pregnancy increases pressure on the nasal mucosal blood vessels, making them prone to rupture and bleed. This may be accompanied by symptoms such as dizziness and headache. Blood pressure should be closely monitored, and antihypertensive medications such as labetalol tablets, nifedipine tablets, or methyldopa tablets may be used under medical supervision. A low-salt diet and adequate rest are also necessary.

5. Thrombocytopenic Purpura

Reduced platelet count during pregnancy leads to impaired clotting function, so even minor nasal mucosal injuries can cause nosebleeds that are slow to stop. Under a doctor's guidance, medications such as prednisone tablets, gamma globulin injection, or amotosalen tablets may be used to increase platelet count. Vigorous activities should be avoided to prevent injury.

In daily life, it is important to keep the nasal passages moist and avoid bad habits such as nose picking. Maintain a light diet and consume more foods rich in vitamin C. Keep emotions stable and avoid stress and anxiety. Regular prenatal checkups are essential for timely detection and management of any abnormalities.