<s>[INST] i have a white paste like substance on the head of my penis. I pulled my finger across the head and it almost looked as if a layer of skin was peeling it off. I am circumsized but when I pulled the skin down all the way I could see it was in there as well. What is this? [/INST] DearWe understand your concernsI went through your details. The off-while slimy paste like substance you are witnessing on the head of your penis is a mixture of urine, sperm and semen and dust and sweat. That will be cleared if you keep the area neat and clean. Keeping the area clean is the remedial measure and comes under personal hygiene. If you require more of my help in this aspect, please use this URL.  Make sure that you include every minute details possible. Hope this answers your query. Available for further clarifications.Good luck. </s>