Lentigo: symptoms, images, AI check 🟢 ICD-10: L81

Home - Dermatology Atlas: Skin Disease Directory, Photos & Treatment Guide - 1. Non‑Cancerous Skin Growths: Moles, Nevi, Skin Tags (13) - Lentigo: symptoms, images, AI check 🟢 ICD-10: L81 | ICD-11: ED61

Lentigo is a benign pigmented spot on the skin, most often light brown in color, which appears due to sun exposure. These spots are not contagious and cannot be transmitted from person to person.

Lentigo most commonly develops after the age of 35, especially in people who spend a lot of time in the sun. With age, such spots appear more frequently and are considered a common skin condition.

What to Do if You Suspect Lentigo

If you notice a new pigmented spot on your skin, it is important to have it properly evaluated.

First step: consult a dermatologist. If necessary, an oncologist may also be involved.

Pay attention to:

Appearance of a new spot or group of spots
Changes in color, shape, or size
Darkening or uneven pigmentation
Itching or other sensations

Important: Do not try to remove spots yourself or use aggressive methods without professional guidance.

Consulting a doctor helps distinguish harmless lentigo from other pigmented lesions that may require treatment.

Appearance

Lentigo usually appears as:

A flat spot or group of spots
Clear, often irregular borders
Color ranging from light brown to brown

Sometimes spots may:

Merge together
Cover larger areas of skin
Have a slightly rough surface

Size: varies widely, from a few millimeters to several centimeters

Common locations:

Face
Hands
Other sun-exposed areas

Over time, spots may become more noticeable and slightly darker.

Below you can see real images in articles to better understand how lentigo looks.

Main Symptoms

In most cases, lentigo does not cause symptoms.

Typically:

No pain
No discomfort

Sometimes:

Mild itching
Slightly rough surface

The main characteristic is a change in skin pigmentation.

Causes

The main cause of lentigo is ultraviolet (UV) exposure.

Key contributing factors:

Prolonged sun exposure
Use of tanning beds
Age-related skin changes
Fair skin type (more sensitive to sun)
Hormonal changes

In simple terms, UV exposure triggers increased pigment production, which accumulates in localized areas.

How Lentigo Develops

Lentigo develops due to local accumulation of melanin, the pigment that gives skin its color.

UV exposure causes skin cells to produce more pigment, which is distributed unevenly, leading to visible spots. Over time, these areas may become more noticeable, especially with repeated sun exposure.

Forms and Types

Lentigo can appear in different forms:

Single spots
Multiple small spots
Large areas of hyperpigmentation

In most cases, this only affects appearance and is not associated with serious risks.

When to See a Doctor

Consult a specialist if:

The spot grows quickly
Color changes or becomes uneven
Borders become blurred or highly irregular
Itching, pain, or bleeding occurs

Also, check any new or unusual pigmented skin changes with a doctor.

Treatment

Lentigo usually does not require treatment, unless it causes cosmetic concern.

Possible approaches:

Observation
Surgical removal of individual spots
Cosmetic procedures (as prescribed by a doctor)

Principles:

Preliminary diagnosis
Individual choice of treatment
Monitoring skin condition after procedures

All removal methods should be applied only after examination by a specialist.

Q&A

Is lentigo dangerous?

In most cases, it is a safe condition with a low risk of complications.

Can sun spots be removed?

Yes, but the need and method of removal are determined by a doctor.

Why do these spots appear?

The main cause is UV exposure and pigment accumulation in the skin.

Can lentigo be prevented?

Yes, sun protection significantly reduces the risk.

Is it the same as freckles?

No, lentigo is usually more persistent and associated with age and sun exposure.

Can lentigo disappear on its own?

Usually no, but spots may become less noticeable.

Can you sunbathe with lentigo?

Yes, but it is important to use sunscreen.

When does lentigo become dangerous?

If appearance changes or symptoms appear — see a doctor.

Check Your Skin Instantly

Use the Mole Checker app: Skinive AI to take a photo of a mole or lesion and get an AI-based risk assessment. It helps determine whether professional consultation is recommended, giving you fast guidance and peace of mind.

Sources

World Health Organization (WHO)
American Academy of Dermatology (AAD)
National Cancer Institute (NCI)
Fitzpatrick’s Dermatology
DermNet NZ

🇬🇧 Lentigo: When to Seek Medical Advice in the UK

If you notice benign neoplasms, nevi, or moles, it’s important to get a professional opinion. In the UK, you can access dermatology care via the NHS, private clinics, or online consultations.

👉 How to See a Dermatologist in the UK NHS – This main guide explains how NHS referrals work, what to expect from specialist dermatology services, and how to choose between public and private care.

Dermatologists in Major UK Cities:

Online Dermatology

If you prefer remote care or faster access, try online dermatology consultations. They allow dermatologists to review images, provide advice, and guide next steps without visiting a clinic. Read more in this article: Online Dermatologists in UK.

🇦🇺 Lentigo: When to Seek Medical Advice in Australia

If you notice benign neoplasms, nevi, or moles, it’s important to get a professional opinion. In Australia, you can access dermatology care via Medicare (public system), private clinics, or online consultations.

👉 How to See a Dermatologist in Australia – This main guide explains how referrals work through GPs and public clinics, what to expect from specialist dermatology services, and how to choose between public and private care.

Dermatologists in Major Australian Cities:

Online Dermatology

For faster access or remote care, online dermatology consultations allow dermatologists to review images, provide advice, and guide next steps without visiting a clinic. Read more in this article: Online Dermatologists in Australia.