Protruding vein on my temple after filler - what could this be? (photos)

The appearance of a protruding vein on your temple following cheek filler injections can be concerning, but there are a few potential explanations:

Vascular Changes:

It's possible that the filler has inadvertently caused changes in the local vascular structure, leading to increased prominence of veins. This can occur if the filler has altered the surrounding tissue dynamics or pressure in the area.
Volume Redistribution:

The addition of volume in the cheeks can sometimes lead to changes in how facial tissues are supported, potentially making certain veins more visible, especially if they were already close to the skin's surface.
Temporary Swelling or Inflammation:

Although you don't mention pain, subtle inflammation or changes in tissue could temporarily make veins more prominent. This could fluctuate depending on factors like hydration, temperature, or physical activity.
Natural Anatomical Variation:

It's also possible that the vein was always present but became more noticeable after filler treatment due to changes in facial contour or skin tension.
Recommendations:

Consult with Your Injector: It's important to revisit the practitioner who performed the filler treatment. They can assess the situation and determine if any intervention is necessary.
Monitor Changes: Keep track of any changes in the appearance of the vein, including size, color, or the development of any symptoms like pain or discomfort.
Consider Ultrasound or Imaging: If there's significant concern, imaging can help determine if the filler is affecting vascular structures.
Overall, while the protruding vein is likely a benign side effect, consulting with your healthcare provider will provide reassurance and guidance on any potential steps to take.