DYSMENORRHEA IS A PAINFUL MENSTRUATION OF SUFFICIENT MAGNITUDE SO AS TO INCAPACITATE DAY TODAY ACTIVITY. IT IS PAINFUL AND CRAMPING SENSATION IN THE LOWER ABDOMEN OFTEN ACCOMPANIED BY BIOLOGICAL SYMPTOMS SUCH AS FATIGUE AND DIZZINESS OCCURRING JUST BEFORE OR DURING THE MENSES. THE INCIDENCE OF PRIMARY DYSMENORRHEA OF SUFFICIENT MAGNITUDE WITH INCAPACITATION IS ABOUT 15-20%. IT IS A VERY COMMON COMPLAINT, EXPERIENCED BY 45-95% OF WOMEN OF REPRODUCTIVE AGE GROUP. DYSMENORRHEA IS OF TWO TYPES: PRIMARY DYSMENORRHOEA (USR-E-TAMS IBTEDAYEE) IS A COMMON GYNECOLOGICAL COMPLAIN REFERS TO THE OCCURRENCE OF PAINFUL MENSTRUAL CRAMPS OF UTERINE ORIGIN DURING MENSTRUATION IN THE ABSENCE OF AN IDENTIFIABLE PATHOLOGICAL LESION. PRIMARY DYSMENORRHEA USUALLY APPEARS WITHIN 1-2 YEARS OF MENARCHE, WHEN OVULATORY CYCLES ARE ESTABLISHED. THE DISORDER AFFECTS THE YOUNGER WOMEN BUT MAY PERSIST INTO THE 40S. IT AFFECTS MORE THAN 50% OF POST PUBESCENT WOMEN IN THE AGE GROUPS OF 18-25 YEARS. IT IS COMMON IN ADOLESCENT AND CHARACTERIZED BY SPASMODIC PAIN BEGINNING WITH ONSET OF MENSTRUATION AND LASTING 12-24 HRS. IN CLASSICAL UNANI LITERATURE, USR-E-TAMS HAS BEEN DESCRIBED AS DARD AL-RAHIM OR AUJA’-E- RAHEM. THE PAIN USUALLY OCCURS IN THE UTERUS AND SPREADS TO THE SURROUNDING AREAS. IT HAS BEEN MENTIONED THAT ANY OBSTRUCTION TO THE FLOW OF MENSTRUAL BLOOD ALTERS THE TEMPERAMENT (SU-I-MIZAJ) RESULTING IN DIFFICULT OR PAINFUL MENSTRUATION, SO THE DRUGS PRESCRIBED FOR THE TREATMENT OF USR E TAMS SHOULD BE POSSESSING THE PROPERTIES OF MUHALLIL, MUDIR E HAIZ, MUSAKKIN AWJAH, MUFATTIT SUDAD. THE PRESENT FORMULA OF DECOCTION OF TUKHME KARAFS (APIUM GRAVEOLENS, LINN) AND TUKHME HULBA (TRIGONELLA FOENUM GRAECUM, LINN) TAKEN FOR THE PROSPECTIVE STUDY IS ALREADY MENTIONED FOR THE TREATMENT OF USR E TAMS IN UNANI PHARMACOPOEIAL BOOK AKSEER-E-AZAM.