What is the brown stains in the vagina area in my underwear? No discolor when I wipe just looks like dry brown water. Have had hysterectomy so no peri

Depends. It is normal to have some vaginal discharge. If there is discoloration or odor then the discharge may be an indication of a problem such as infection or cancer. You should see your doctor for an exam.
Usually old blood. Browns are usually from small quantities of old blood--from vagina or urinary tract. Can be indicator of irritation or infection. Should see your gyn or primary dr for examination and testing as needed.