Blood flow to scalp ()

Blood flow to scalp Overview

Blood flow to scalp is not a molecule, receptor, enzyme, transporter, or any canonical therapeutic target. Instead, it refers to the physiological process by which blood circulates through the vascular network supplying the human scalp and its hair follicles. This process is essential for delivering oxygen and nutrients necessary for healthy hair growth and removing metabolic waste products from follicular cells. The vascular supply forms a complex interconnecting network that supports areas with high metabolic activity such as active hair follicles. While reduced blood flow has been observed in balding scalps—potentially contributing to some forms of hair loss—current evidence suggests that decreased perfusion is more often a consequence rather than a primary cause of follicle miniaturization in pattern baldness; however, structural impediments or chronic muscle tension may also play roles in restricting local circulation in some cases. Interventions like topical minoxidil act as vasodilators to increase local perfusion and are used therapeutically for certain types of alopecia. Non-pharmacologic methods such as massage or red light therapy aim to enhance microcirculation via mechanical stimulation or nitric oxide-mediated vasodilation but do not target a specific molecular entity.

Mechanism of Action

Vasodilation (e.g., minoxidil increases local blood flow by dilating blood vessels) Nitric oxide-mediated vasodilation (e.g., red light therapy triggers nitric oxide release)

Biological Functions

Safety Considerations

Interacting Drugs

Associated Biomarkers