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What causes café-au-lait spots?

Sep 22, 2024 Source: Cainiu Health
Dr. Liu Wenmin
Introduction
In general, coffee-colored spots refer to café-au-lait spots, which may be caused by genetic factors, sun exposure, hormonal changes during pregnancy, endocrine disorders, or tuberous sclerosis. It is important to pay attention to sun protection, avoid prolonged exposure to ultraviolet radiation, maintain a balanced diet, and avoid emotional fluctuations. It is recommended to seek timely medical advice and receive symptomatic treatment under the guidance of a physician.

Under normal circumstances, coffee spots refer to café-au-lait spots, which may be caused by genetic factors, sun exposure, hormonal changes during pregnancy, endocrine disorders, or tuberous sclerosis. It is recommended to seek medical attention promptly and receive symptomatic treatment under a doctor's guidance. Specific analyses are as follows:

1. Genetic Factors

The appearance of café-au-lait spots may be related to genetics. If family members have such spots, the individual's likelihood of developing similar pigmentation is relatively higher. Daily use of sunscreen and avoiding sun exposure are basic protective measures.

2. Sun Exposure

Long-term or excessive sun exposure can stimulate melanocytes in the skin, causing them to produce more melanin and form café-au-lait spots. Regular use of high-SPF sunscreen, especially during outdoor activities, is recommended.

3. Hormonal Changes During Pregnancy

Pregnant women may develop or experience worsening café-au-lait spots due to changes in hormone levels during pregnancy, particularly increased estrogen and progesterone. Maintaining healthy lifestyle and dietary habits and avoiding excessive anxiety and stress are important during pregnancy.

4. Endocrine Disorders

Endocrine disorders, often caused by unhealthy lifestyle habits, can affect the metabolism and distribution of melanocytes, leading to increased melanin production and deposition on the skin surface, resulting in café-au-lait spots. These may be accompanied by symptoms such as menstrual irregularities and mood swings. It is recommended to take medications such as methimazole tablets, propylthiouracil tablets, or levothyroxine sodium tablets under a doctor’s supervision.

5. Tuberous Sclerosis

Tuberous sclerosis is a rare genetic disorder characterized by multiple café-au-lait spots on the face and other body areas, possibly accompanied by kidney dysfunction, angiofibromas (butterfly-shaped papules), and other symptoms. Patients are advised to follow medical instructions and use medications such as potassium iodide tablets, everolimus tablets, or oxcarbazepine tablets to alleviate symptoms.

In daily life, attention should be paid to sun protection, avoiding prolonged ultraviolet radiation, maintaining a balanced diet, and minimizing emotional fluctuations to prevent the development and worsening of café-au-lait spots.

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