Why everytime i have sex i bleed ?

Hard to say: Bleeding after intercourse is the classic symptom for women with dysplasia of the cervix, (those are abnormal, possibly precancerous cells), but it can happen if there is an infection, or sometimes if the lining of the uterus is too thick from irregular ovulation or irregular periods. You could have a polyp on the cervix that gets irritated with intercourse. Need an exam for better diagnosis.

A/W Dr. Askew: Possible reasons for bleeding during or after sexual intercourse include: vaginal trauma, sexually transmitted disease, iud, cervical cancer, combination oral contraceptives (cervical erosion), endometriosis, vaginitis, ; adenomyosis. Medical evaluation is indicated.