What causes spot bleeding after my periods

What are the possible causes of  abnormal vaginal spotting?
Injury to the vagina during sexual intercourse
Cervical inflammation
Chlamydia, or gonorrhea
uterine fibroids, uterine or cervical tumors, or abnormal tissue growth in the uterus
Stress
Changes in hormone levels, possibly as a thyroid problem
Start or stop the OC pill
(blood thinners)
Ectopic pregnancy, abortion or other pregnancy complications
Cervical biopsy or other similar procedures in the genital area
What are the necessary tests?
Clinical examination
Full blood test
Examination of vaginal area and uterus
Ultrasonic examination of the abdomen and pelvis
Pap smear
What is the treatment ?
 the treatment depends on the cause. You should visit the obstetrician and gynecologist to make a full assessment of your condition , Comforts
Avoid intercourse for a specific period until the wound is healed
Treat infections if found through clindix cream once daily for 7 days and cream tiozole V only once
you also can take naproxen 500mg