<s>[INST] ammm this is really embarasing but i want to know what is wrong with me ... there are small bumps like little pinkish brownish colored (amm hard to tell the colour kinda like my skin)(no pain or itiching or any discomfort) on the head of my penis they are very little and there are lots of them covering all of the area of where my fore skin was removed obviously its when i was little not resently. but these bumps are also on the top of my fingers where the joints are and knukles and also on the side of my left knee  i am 19 not sexually active no medical probs before i am around 80 kg and aroung 5ft 11inch [/INST] Hello, The possible causes are:1. Warts: They may be due to papillomavirus Infection may present on penis or other parts of the body2. Pearly penile papules3. Force spots4. Molluscan contagiosum5. Skin ulcers et ceteraUntil examination of the lesion is not done, it is difficult to treat. Please consult your dermatologist, he will examine and treat you accordingly. Hope I have answered your query. Let me know if I can assist you further. </s>