Conversation: The conversation between human and AI assistant.
[|Human|] Hi, may I answer your health queries right now ?  Please type your query here...I have three blue bumps on the head of my penis. They are soft and have been there for as long as i can remember. They never hurt and are the colour of a vain in my arm. When i get an erection they get larger.
[|AI|]  Hello, Genital warts are small fleshy growths or bumps that can appear on the shaft, and sometimes head, of the penis or under the foreskin.  They're caused by the human papillomavirus (HPV), which is a sexually transmitted infection (STI).  As you have no other symptoms like pain, itching or burning, you should not worry too much. You can confirm and have a sigh of relief from a physician or skin specialist in person. Hope I have answered your query. Let me know if I can assist you further. Take care Chat Doctor.  V. Anand, Psychologist