Lichen Planus: An Autoimmune Skin Condition Affecting Skin, Nails, and Mouth

March 16, 2026

Lichen Planus: An Autoimmune Skin Condition Affecting Skin, Nails, and Mouth

Verified By
KIMS-SUNSHINE
Specialist,
16 March, 2026

Lichen Planus_ An Autoimmune Skin Condition Affecting Skin Nails and Mouth

Lichen planus is a skin condition that can cause rashes to form in different parts of the body. It is a chronic inflammatory skin disorder which tends to get better even without any treatment. But, the symptoms can be hard to deal with and affect quality of life at times. So, if you notice symptoms like an itchy purple skin rash, get in touch with our specialists today, as KIMS Sunshine is the best dermatology hospital in Hyderabad.

Lichen Planus Causes-

Lichen planus is a non-contagious skin condition where bouts of inflammation can cause sores and itchy rashes to form. They may or may not scar eventually. It can affect your nails, skin and oral mucosa. It is not entirely autoimmune either, but t-cells in the body attack specific skin cell proteins. The exact reason as to why there is an immune component to this condition is not known.

It is important to remember that this condition cannot spread from one person to another due to physical or sexual contact.

Some of the causes for such rashes to form or flare ups to occur include-

Getting vaccinated for some condition.
If you use specific medications to deal with hypertension, arthritis or heart disease.
If you have hepatitis C viral infection.
If you use NSAIDs regularly.
If you are exposed to certain chemicals.

Lichen Planus Symptoms-

Lichen planus can affect the nails, oral mucosa or skin cells. So, symptoms will also differ accordingly-

An itchy purple skin rash
You may also notice tiny bumps on the skin- they may be very small or grow as big as the width of a pencil or may even become sores later on. They are mostly observed in the groin.
Oral lichen planus lesions mean you may have white dot like structures in the sides of the mouth, tongue, lips.
Nail lichen planus changes include colour changes, nails becoming brittle and breaking off or a complete stop in nail growth.

The rashes or bumps don’t hurt. But, they may be itchy and when you scratch them too hard, your skin may break and place you at a high risk of suffering from an infection.

Stop scratching that ever itchy patch of skin!
Talk to a specialist now.

Lichen Planus Diagnosis-

Dermatologists normally look for certain characteristics for skin conditions and will also ask you detailed questions about your symptoms. These are the 6 Ps or skin properties that help a doctor diagnose lichen planus accurately-

Pruritis– if it is very itchy.
Polygonal– if sharp angles in your rash outline are observed.
Planar– the top part of the rash is flat.
Purple papules– Purple coloured bumps on the skin.
Plaques– discoloured, raised patches of skin.

Blood tests to check for hepatitis C infection are done. An allergy test can be prescribed to understand what triggers lichen planus flare ups for you individually. A biopsy may be recommended in certain cases.

Lichen Planus Treatment Options-

Since chronic inflammation causes symptoms, managing it can help reduce severity overall. The use of corticosteroid creams and antihistamines can help. Phototherapy or light therapy with UVB rays can help soothe skin.

Immunosuppressants can be given to modulate immune response. Retinoids or Vitamin A derivatives can be used as serums or creams to increase collagen and blood supply in skin cells.

Home care can include the use of soothing aloe vera gel, oatmeal bath and learning to manage stress better.

Conclusion

Lichen planus can be triggered by a variety of causes- so you need to be careful about what skin products you use, what foods you eat and try not to smoke or get exposed to chemicals. Maintaining oral hygiene is super crucial and if certain dental fillings are causing your symptoms, you can ask for hypoallergenic amalgam options. Talking to an experienced dermatologist can help you identify the condition, its severity and help you manage and treat them in the long term. So, call us at KIMS Sunshine Hospital today, if you have been searching for Dermatology Hospital Near Me, online.

Frequently Asked Questions

What is lichen planus?

Lichen Planus is an inflammatory condition that affects the skin, mucous membranes, hair, or nails. It presents as an immune-mediated response that causes irritation and distinctive lesions. The condition may appear on the wrists, ankles, or inside the mouth and can persist for weeks to months.

What are the common symptoms of lichen planus?

Common symptoms include purplish, flat-topped bumps on the skin that may itch or cause discomfort. In the mouth, it can appear as white lacy patches, redness, or painful sores. Nail involvement may lead to ridging or thinning. Symptoms vary depending on the area affected and severity of the inflammatory response.

Is lichen planus contagious?

Lichen planus is not contagious and does not spread from person to person through contact. It is an immune-related condition rather than an infection caused by bacteria or viruses. Individuals with lichen planus can safely interact with others without risk of transmitting the condition through physical contact or shared items.

Can stress trigger lichen planus flare-ups?

Stress can contribute to flare-ups by influencing immune system activity and increasing inflammation. Emotional or physical stress may worsen existing symptoms or trigger new lesions in some individuals. Managing stress through relaxation techniques, sleep, and routine care may help reduce the frequency or intensity of flare-ups over time.

When should someone see a doctor for lichen planus?

Medical evaluation is important when symptoms cause persistent pain, itching, or interfere with eating or daily activities. Consultation is necessary if lesions appear in the mouth, genitals, or nails, or if they worsen over time. Early diagnosis helps manage symptoms effectively and reduces the risk of complications or long-term discomfort.