<s>[INST] I am 17, about to be 18.and i do masturbate frequently. I started having a sort of muscle pain, soreness in the area between my scrotum and anus. but it doesnt hurt when i touch it. Just wanted to know if I should be alarmed or if its just a pulled muscle. [/INST] Thanks for asking in healthcaremagic forum  May be you are right, muscle pull can cause pain in that area. Visit doctor if it does not subside by 2-3 days. All the best. </s>