Introduction:  Recent studies indicated that migraine is associated with specific vascular risk profile. However, the functional and structural vascular abnormalities in migraine are rarely addressed.  objectives: of the present study is to evaluate cerebral blood flow (CBF) velocities using transcranial Doppler (TCD) during an attack-free period in anterior, middle, and posterior cerebral arteries in migraine patients without aura (MwoA) as well as in chronic tension-type headache (TH) patients who were not receiving prophylactic medication for their headaches, in a sample of patients attended to outpatient clinic in Aswan university hospitals. Methods: A total of 50 subjects (32 females, 18 males), Migraine (20), Tension headache group (20), Control group (10), Peak Systolic Velocity (PSV) of middle cerebral artery (MCA), anterior cerebral artery (ACA), posterior cerebral artery (PCA), End diastolic velocity (EDV) Pulsatility index (PI), Resistivity index (RI) were calculated for all groups. Results: Mean SD for age in years in MwoA group was 32.75 ± 9.6 and in TH group was 32.75 ± 9.6 and in control group was 35.20 ± 8.6. Also M: F ratio was 3:1 in MwoA, TCD Parameters of Anterior Circulation for MCA show significant difference in PSV between MwoA group and TH group and also between MwoA group and control group but no significant difference between TH group and either group the same was for EDV, in ACA only significant difference in PSV between MwoA group and control group.