Background and Purpose: Lower urinary tract dysfunction disturbs the natural process of urine storage and voiding. It has many pathogenic effects on people's physical and mental health which today are the fundamental problems in the field of health. Studying ancients’ approach to disease of bladder and urinary symptoms can open a new chapter in the face with and treatment of such problems in both patients and therapists. Clarify and update medical concepts and terms mentioned in valid and ancient medical texts, is the first step. “taghtir ol bol” is a medical term that ancients have mentioned it under topics related to lower urinary tract dysfunction. Literature study shows that the term medical concept is beyond its literal meaning, which is a drop of urine, so we decided to focus on its explanation.

Methods and Materials: Topics related to the bladder and lower urinary tract dysfunction with focus on “taghtir ol bol” were studied in ancient medical references. All related to definition and causes of “taghtir ol bol” were collected and analyzed. The results were summarized and categorized. The article was written in the form of a review-analytical study.

Results: The results of the investigation indicate that perhaps the “taghtir ol bol”, is meant frequent urination, rather than a drop of urine. Its causes are from urine as a waste material or from the bladder and the muscle in bladder neck or from the participation of other organs with the bladder.

Conclusion: “taghtir ol bol”  can be associated with other urinary symptoms such as “horghat ol bol”, “osr ol bol” and “salas ol bol”. In this case, the cause of these symptoms also makes “taghtir ol bol”. Difficult discharge of urine, which causes a drop of urine occurs more often in conditions which in them “taghtir ol bol” is due to “osr ol bol” etiologies.