Mild brown discharge on the 38th day of pregnancy is not normal and may be related to miscarriage, gynecological diseases and other factors. 1. Pre-eclampsia: If a pregnant woman with a brown discharge accompanied by abdominal pain or lumbago on the 38th day of pregnancy is generally considered to be pre-eclampsia, the patient needs to consult a doctor in a timely manner for fertility preservation treatment, so as not to aggravate the situation or have a miscarriage. 2. Gynecological diseases: If a pregnant woman suffers from vaginitis, cervical polyps, cervicitis, uterine fibroids and other gynecological diseases, there may be a slight brown discharge, the patient needs to consult a doctor in time for targeted treatment. 38 days pregnant with a slight brown discharge, it is recommended that pregnant women timely medical examination, actively cooperate with the doctor’s treatment, pay attention to rest in life, keep the perineal area clean and dry, maintain a relaxed mood, happy, etc. In addition, pregnant women need to pay attention to monitoring the condition, regular review.