I have a lump the size of a dime on my lower left abdominal area. it hurts and it dark red. i started noticing it yesterday. do you know what it is?

Need to examine: It is not feasible to provide a meaningful opinion without examining you, however, what you described suggests bleed into tissue, a hematoma. It should resolve on its own. If the "lump" more than doubles in size, bleeds, ulcerated, develops a discharge or other lumps appear, it would be prudent to see a doctor. Wish you 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, if you have sex. Get HPV vaccine, if you are under 27 years of age.