Diabetes and Birthmarks: Is There a Connection?

Oct 18
2025

At The Vascular Birthmark Center in New York, we strive to provide our patients with comprehensive information about the various conditions affecting skin and vascular health. One question that arises frequently is whether there is a connection between diabetes and birthmarks. While birthmarks in themselves do not cause diabetes, various diabetes-related skin conditions may resemble birthmarks, and a high number of moles can be linked to an increased risk of developing Type 2 diabetes.

Understanding this potential relationship can help individuals recognize skin changes that may warrant further examination by a healthcare professional.

Skin Conditions Associated with Diabetes

Diabetes can manifest in several skin conditions that may mimic or appear alongside birthmarks. Here are some common diabetes-related skin conditions:

Diabetic Dermopathy (Shin Spots)

Diabetic dermopathy is one of the most common skin conditions seen in individuals with diabetes. It appears as small, round reddish-brown patches that typically develop on the shins. These patches are often indented and have a scaly texture, indicating underlying damage to blood vessels and nerves associated with diabetes. While they are not harmful, their appearance can be alarming and may be mistaken for birthmarks.

Necrobiosis Lipoidica

This is a rarer but more serious skin condition that can occur in individuals with diabetes. It begins as raised, red spots that progress into large, shiny patches, which can be yellow or brown. The affected skin may become thin, painful and can ulcerate, leading to sores. Although not a birthmark, necrobiosis lipoidica can quite resemble one due to its unique coloration and texture.

Vitiligo

Vitiligo causes depigmented white patches of skin, resulting from the loss of melanocytes, the cells responsible for skin pigmentation. This condition can also appear around areas previously affected by injuries or near moles, further complicating the visual diagnosis. Individuals with diabetes may experience vitiligo, and recognizing the signs early can facilitate treatment.

Acanthosis Nigricans

Characterized by dark, velvety patches of skin, particularly in body folds such as the neck or armpits, acanthosis nigricans can be a sign of insulin resistance—a common issue associated with Type 2 diabetes. Although it does not resemble birthmarks, awareness of this condition is important, as it often signals an underlying health issue.

Skin Tags

While not birthmarks, a higher prevalence of skin tags may be a warning sign of insulin resistance, which is linked to Type 2 diabetes. These benign growths can appear anywhere on the body, often where skin rubs against skin, and may be more common in individuals with higher glucose levels.

Diabetic Moles and Insulin Resistance

Interestingly, studies, including one published in 2017, indicate that a high number of moles—known as nevi—can be a sign of underlying insulin resistance. This association emphasizes the importance of discussing any significant changes in your skin, particularly in the presence of numerous moles, with your healthcare provider. Insulin resistance is often a precursor to Type 2 diabetes, and identifying markers on the skin can be pivotal for early intervention.

Expert Care at The Vascular Birthmark Center

We understand that navigating the complexities of skin conditions, particularly when related to diabetes or vascular anomalies, can be challenging. Dr. Gregory Levitin, a recognized expert in the diagnosis and treatment of various vascular birthmarks, is here to assist you. He has been acknowledged as one of America’s “Top Doctors” by Castle Connolly and as one of New York’s “Best Doctors” by New York Magazine.

Dr. Levitin provides specialized care for all types of vascular birthmarks, including hemangiomas, port-wine stains and other conditions. Patients from both coasts can access specialized care, as we also have a satellite office in Los Angeles (VBC-LA), offering same-day appointments and comprehensive treatment plans tailored to individual needs.

Frequently Asked Questions (FAQs)

Can birthmarks become dangerous?

Generally, birthmarks are benign, but a birthmark specialist should evaluate changes in size, color or shape to exclude other conditions.

How often should I have my moles checked?

It is advisable to have moles and skin changes evaluated annually by a dermatologist, especially if you have a family history of skin conditions or a high number of moles.

What should I do if I notice skin changes?

Any new or changing skin condition should be promptly addressed with a healthcare provider to determine whether evaluation or treatment is needed.

Can diabetes affect skin healing?

Yes, diabetes can impair skin healing due to reduced blood flow and nerve function, making it essential to manage blood sugar levels effectively.

Are there treatments for conditions like diabetic dermopathy or vitiligo?

While there are no cures, treatments such as medications, topical therapies and lifestyle changes can help manage symptoms and improve the skin’s appearance.

Specialist Birthmark Care in NYC

If you have questions or concerns about birthmarks or diabetes-related skin conditions, don’t hesitate to contact us for a free consultation. Taking proactive steps toward your skin health can lead to better overall well-being.