<s>[INST] Hi, Ive had lower left abdomon pain along with lower left back pain which also tends to cause an achie groing and scrotum area throughout the day ? What could this be ? I did have a vasectomy a year ago and it seems since that my scrotum/ left testicle aches until i crack my hip or lower back ??? any suggestions ? My doctor said to stop drinking coffee and alcohol ? and that I have arthritis in my lower back ? [/INST] Hi. Your description makes me think of a probable diagnosis of either urinary tract infection along with may be a stone or so in the left ureter. Please go for ultrasonography of abdomen and scrotum and urine tests. This will help to diagnose the cause and leads to a proper treatment. </s>