As of recently, i've been masturbating often. a few days ago, i realize that i was bleeding. the blood was light, pinkish-red. my vaginal odor has been different too. but the only thing is that i see blood is when i wipe. what could be the cause?

Trauma: From what you described you probably abraded part of your vulva and it bleeds when disturbed. You may consider using a lubricant like K-Y jelly for masturbation. Get HPV vaccine. 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.