Moles, medically known as nevi, are found scattered across our bodies in a unique way. While some are present from birth (congenital nevi), the vast majority develop during childhood, adolescence, and into our thirties. But why do the moles do they appear Suddenly? What are the internal and environmental factors that trigger their formation?
Understanding the formation of nevi is essential for better skin protection. The Yaphé Center, a center of excellence in dermatological surgery in Paris, sheds light on this biological phenomenon.
The biological mechanism: a story of melanocytes
To understand the appearance of a mole, we need to look at melanocytes. These are the cells in the epidermis that produce melanin, the pigment that colors our skin and protects it from the sun's rays. Normally, melanocytes are evenly distributed.
However, for specific reasons, these cells sometimes come together and form a small cluster concentrated in a specific place: this is the birth of a mole.
The main contributing factors
Several major factors explain Why do moles appear? throughout life:
- Genetic predisposition: The number and type of moles you develop are largely determined by your DNA. If your parents have fair skin with many moles, you have a high probability of having the same skin profile (phenotype).
- Exposure to UV rays: The sun and tanning beds are the number one environmental accelerators. UV rays intensely stimulate the activity and multiplication of melanocytes. Severe sunburns during childhood or adolescence greatly promote the development of new moles in adulthood.
- Hormonal fluctuations: Hormones play a key role in pigmentation. The appearance of new moles or the darkening of existing ones is frequently observed during puberty, pregnancy, or during hormonal treatments.
Advice from the Yaphé Centre: Once past thirty, the appearance of a new A black or asymmetrical mole should raise concern. This is the age when cell renewal slows down, and a new spot can sometimes be an early sign of an injury requiring medical attention.
The importance of screening and monitoring Yaphé Center
The appearance of moles is a natural process, but it requires constant vigilance. An annual skin examination by a specialist is recommended to detect any suspicious changes early.
At the Yaphé Center in Paris, our specialist practitioners welcome you for comprehensive skin assessments. Thanks to our clinical expertise and cutting-edge diagnostic tools, we monitor the evolution of your moles. If one of them shows signs of atypical growth, our surgeons perform its excision under optimal hygiene and safety conditions, guaranteeing you complete peace of mind and a virtually invisible scar.