Color Changes in Penile Hemangiomas: What to Know - Urology

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Hemangiomas are benign tumors composed of blood vessels, and they can indeed exhibit changes in color based on various factors. In your case, the observation that the hemangioma on the outer side of the foreskin changes from a darker red to a bright red during friction or stimulation is consistent with the behavior of vascular lesions.
The color changes in hemangiomas are primarily due to the dynamics of blood flow within the lesion. When the area is at rest, the blood vessels may constrict slightly, leading to a darker appearance. However, when there is friction, irritation, or increased body temperature (such as during physical activity or emotional stress), the blood vessels dilate, causing the hemangioma to appear brighter and more vibrant in color. This is a normal physiological response and is not typically a cause for concern.

It's important to note that hemangiomas can vary in appearance and behavior. They may grow, shrink, or change color over time, and these changes can be influenced by factors such as hormonal fluctuations, temperature changes, and physical activity. In many cases, hemangiomas in children and adults are self-limiting and may resolve on their own without treatment. However, if the hemangioma is causing discomfort, bleeding, or other complications, medical intervention may be necessary.

In your situation, since a healthcare professional has already diagnosed the lesion as a hemangioma, it is advisable to monitor it for any significant changes. If you notice any new symptoms, such as increased size, pain, or bleeding, or if the color changes become more pronounced or concerning, you should seek further evaluation from a dermatologist or a specialist in vascular lesions.

In summary, the color changes you are experiencing with your hemangioma are typical and can be attributed to the vascular nature of the lesion. As long as there are no alarming symptoms or changes, it is generally safe to observe the lesion. However, maintaining regular check-ups with your healthcare provider is essential to ensure that any potential issues are addressed promptly.