vomiting

hi my name is yvette i like to know why am i throwing up yellow
and blood its been going on for 3weeks already it was only yellow
at first then these past 2weeks its been blood someone help!!!!

[Dr. Kokil Mathur]

Hi
Welcome to the forum!
Smoking, alcohol use, gastritis, acidity, tumors of stomach and food pipe, bleeding gastric ulcer, cancer of stomach, erosion of lining of food pipe, bleeding veins at esophageal (food pipe) sphincters etc all cause vomiting of blood. This can be fresh red if coming from a place above the stomach. It can be brown or coffee colored if coming from the stomach.  Tumors of the oral cavity, pyorrhea or pus in gums and Vitamin C deficiency can cause bleeding from mouth, which if ingested can result in vomiting.
The other possibility is that you are coughing up blood. This can be due to bronchitis or pneumonia, lung cancers (especially in smokers), tuberculosis, bronchiectasis, pulmonary embolism, or fungal and other infections.
Discuss these possibilities with your doctor. It is difficult to comment beyond this without examining. A comprehensive investigation is required keeping all the points in mind.
Hope this helps. Please let me know if there is any thing else and do keep me posted. Take care!