Having pink discharge after sex often. Had blood and urine tests for STD's all negative. Normal Pap test. What could cause issue? Bc pills?

Need to examine. Post-coital bleeding is usually due to some lesion on the cervix and that only be resolve by an examination, so see your doctor or a gynecologist. Consult this site for more info: http://blogs.webmd.com/womens-health/2009/07/postcoital-bleeding.html For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex. Get HPV vaccine.