Nose enlargement in months of pregnancy is usually soft tissue enlargement, which may be caused by weight gain, edema, etc. It may also be caused by rhinitis. If the patient appears uncomfortable symptoms of, should promptly go to the hospital for consultation and treatment. 1. Weight gain: most pregnant women experience weight gain during pregnancy because they need to supplement enough nutrition. The body fat is obviously obese compared to before, it may lead to the situation that the nose is fat and bigger. 2. Edema: higher levels of estrogen and progesterone during pregnancy can easily lead to edema in the face, limbs, and body of pregnant women, which can cause the nose to look bigger. 3. Rhinitis: Pregnant women suffering from rhinitis, resulting in long-term congestion and swelling in the nasal cavity, it will look like a bigger nose. Typical symptoms are runny nose, nasal congestion, itchy nose, sneezing and so on. If there are no uncomfortable symptoms, pregnant women should not worry too much and do not need special treatment. If uncomfortable symptoms appear, it is recommended to go to the hospital in time for treatment.