Whenever there is a brown, or black, or red vaginal discharge there is bleeding because the blood is darkened when it encounters the acidic environment of the vagina. Therefore, although the period is clean, but has been a brown discharge, it means that there is still continue to bleed again, which is a prolonged menstrual period or irregular vaginal bleeding. There are many reasons for this condition, sometimes it is due to inflammation, such as cervicitis, vaginitis and endometritis. Prolonged periods or irregular vaginal bleeding can also occur in case of endometrial polyps and submucosal fibroids. Therefore, it is recommended that in case of brown discharge, go to the hospital as soon as possible for a gynecological examination and ultrasound to make a clear diagnosis and then treat it.