About
Dr. Charles Walter Lynde is a dedicated Dermatologist specializing in the diagnosis and treatment of a wide array of conditions affecting the skin, hair, and nails in adult patients, and may see older children for certain conditions. Practicing at a dermatology clinic in Markham, ON, he is a key member of the local medical community. He provides comprehensive medical and surgical dermatological care for a wide variety of skin, hair, and nail conditions, including acne, eczema, psoriasis, and skin cancer detection. His practice emphasizes evidence-based approaches to ensure optimal patient outcomes while maintaining a compassionate and professional environment. Dr. Lynde adheres to the standards set by the College of Physicians and Surgeons of Ontario (CPSO), ensuring high-quality care aligned with provincial medical regulations.
He graduated with a Medical Degree from the University of Toronto (Canada) and has over 41 years of experience practicing as a Dermatologist since 1983. Recognized as a RCPSC Specialist by the College of Physicians and Surgeons of Ontario (CPSO), Dr. Lynde brings extensive expertise and a profound commitment to skin health. His advanced training and continuous professional development enable him to stay current with the latest dermatological innovations and treatment modalities.
Dr. Lynde’s clinical philosophy centers on providing personalized, evidence-based skin care. He emphasizes patient education on skin health, prevention strategies, and early detection of skin cancers. His approach involves thorough assessments, detailed treatment planning, and ongoing support to ensure each patient receives tailored care that aligns with their individual needs. Fluent in English, he is dedicated to serving the Markham community with integrity, professionalism, and compassion.

Dr. Charles Lynde diagnoses and treats a wide range of skin, hair, and nail conditions, including:
Nail Disorders (Onychopathies)
- Ingrown Toenails (Onychocryptosis): A condition where the corner or side of a toenail grows into the soft flesh, causing pain, redness, swelling, and potential infection.
- Lichen Planus of the Nails: Nail involvement in lichen planus, which can cause thinning, ridging, splitting, pterygium formation (scarring from nail fold to bed), or even nail loss.
- Paronychia (Acute & Chronic): Inflammation or infection of the skin fold around the fingernails or toenails, causing redness, swelling, and pain. Can be acute (bacterial) or chronic (often fungal or irritant-related).
Inflammatory & Immune-Mediated Skin Conditions
- Dermatomyositis: An inflammatory disease marked by muscle weakness and a distinctive skin rash, often on the face, eyelids (heliotrope rash), knuckles (Gottron's papules), and chest.
- Cutaneous Lupus Erythematosus (Discoid, Subacute, Acute): Skin manifestations of lupus, an autoimmune disease, which can range from scaly, disc-shaped lesions to widespread rashes triggered by sun exposure.
- Eczema (Atopic, Contact, Seborrheic, Discoid, Asteatotic): A group of chronic conditions causing itchy, inflamed, and often dry skin. Types vary in appearance and common locations, triggered by genetics, allergens, irritants, or other factors.
Skin Cancers, Precancerous Lesions & Benign Growths
- Basal Cell Carcinoma (BCC): The most common type of skin cancer, typically slow-growing and arising from sun-exposed skin, appearing as a pearly or waxy bump, flat flesh-colored or brown scar-like lesion, or a bleeding/scabbing sore.
- Melanoma: The most serious type of skin cancer, developing in melanocytes. Early detection is crucial. Look for asymmetry, irregular borders, color variation, diameter >6mm, and evolving moles (ABCDEs).
This list is not exhaustive. For personalized advice regarding your specific dermatological condition, please consult with Dr. Charles Lynde.
- Chemical Peels (Superficial, Medium, Deep - Glycolic, Salicylic, TCA, Phenol): Application of chemical solutions to exfoliate the skin and improve texture, tone, and appearance by treating acne, sun damage, pigmentation, and fine lines. Peel depth varies by agent and concentration.
- Electrodessication & Curettage (ED&C) for Superficial Skin Cancers & Benign Lesions: Surgical procedure to scrape away superficial skin lesions (e.g., some BCCs, SCCs in situ, warts) and cauterize the base.
- Comprehensive Dermatological Consultation & Full Body Skin Examination: In-depth assessment of conditions affecting the skin, hair, and nails, including review of medical history, complete skin examination (including scalp, nails, and mucous membranes), diagnostic testing, and personalized treatment planning.
- Psoriasis & Psoriatic Arthritis Management (Topical, Phototherapy, Systemic, Biologics, JAK inhibitors): Comprehensive management of psoriasis (plaque, guttate, pustular, erythrodermic) and associated psoriatic arthritis, using topical treatments, narrowband UVB or PUVA phototherapy, oral systemic medications (e.g., methotrexate, cyclosporine), and advanced biologic therapies or JAK inhibitors targeting specific immune pathways.
- Body Contouring & Skin Tightening (e.g., Cryolipolysis, Radiofrequency, Ultrasound): Non-invasive or minimally invasive procedures designed to reduce localized fat deposits (e.g., CoolSculpting®) or tighten lax skin on the face and body (e.g., Thermage®, Ultherapy®).
- Hyperhidrosis (Excessive Sweating) Treatment (Topical, Oral, Botulinum Toxin): Management options for excessive sweating of the underarms, palms, or soles, including prescription antiperspirants, oral medications, and botulinum toxin injections.
- Interpretation of Dermatopathology Reports & Second Opinions: Expert analysis of skin biopsy results to confirm diagnoses, guide treatment strategies, and provide second opinions on complex dermatopathology cases.
Note: This list provides a general overview of medical and potentially some cosmetic services. Treatment plans are highly individualized. Discuss with Dr. Lynde for care relevant to your specific condition. Coverage for services varies; medically necessary treatments are typically covered by provincial health plans, while cosmetic procedures are usually self-pay.
All medical and surgical services (if applicable) are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of Ontario (CPSO) and relevant dermatological care guidelines. Contact the clinic or your referring physician regarding new patient intake and referral processes.
Dr. Lynde practices at a dermatology clinic located in the vibrant neighborhood of Markham Village, Old Markham Village. The clinic is conveniently situated near the Markham Civic Centre and the Flato Markham Theatre, making it easily accessible for residents and visitors alike. Public transit options include York Region Transit (YRT) and Viva, providing straightforward access from various parts of the city. The facility is wheelchair accessible to accommodate patients with mobility needs. Parking is available at or near the facility, ensuring convenience for those arriving by car. The location offers a welcoming environment with modern amenities to support comprehensive skin care and dermatological services.
- Are consultations and dermatological treatments with Dr. Lynde, a Dermatologist, covered by Ontario Health Insurance Plan (OHIP) in ON?
- Medically necessary consultations with a licensed Dermatologist like Dr. Lynde, diagnostic procedures (e.g., skin biopsies), and treatments for provincially insured skin conditions (e.g., psoriasis, severe eczema, skin cancer, infections) are generally covered by Ontario Health Insurance Plan (OHIP) in ON when a referral from a family doctor is in place. Purely cosmetic procedures (e.g., Botox for wrinkles, most laser hair removal, fillers for aesthetic enhancement) are typically not covered and are self-pay. It's crucial to discuss coverage specifics for any proposed treatment with Dr. Lynde's office or Ontario Health Insurance Plan (OHIP) beforehand, especially if there's a potential cosmetic component.
- Do I need a referral to see Dr. Lynde, a Dermatologist?
- Yes, for medically necessary dermatological care covered by the provincial health plan, a referral from your family physician or another specialist (e.g., an ER doctor for an acute issue) is almost always required to see a Dermatologist such as Dr. Lynde. This ensures coordinated care and that your visit is appropriate for specialist assessment. Some dermatologists may offer consultations for uninsured cosmetic services without a referral, but these would be a direct cost to you. Always check with the clinic regarding their specific referral policy.
- What kind of sunscreen does Dr. Lynde recommend?
- While specific brand recommendations can vary, Dr. Lynde would likely advise choosing a broad-spectrum sunscreen that protects against both UVA and UVB rays, with an SPF (Sun Protection Factor) of 30 or higher. For daily use, a lighter formulation might be preferred, while for prolonged outdoor activities, water-resistant sunscreen is important. Consider your skin type: individuals with sensitive skin might prefer mineral-based sunscreens containing zinc oxide or titanium dioxide. The most important thing is to apply sunscreen generously and reapply it every two hours, or more often if swimming or sweating. Dr. Lynde can provide personalized recommendations based on your skin type and lifestyle during your consultation.
- If Dr. Lynde recommends phototherapy, what does that involve?
- Phototherapy, also known as light therapy, is a medical treatment where your skin is exposed to specific wavelengths of ultraviolet (UV) light under strict medical supervision. Dr. Lynde might recommend it for conditions like psoriasis, eczema, vitiligo, or cutaneous T-cell lymphoma. Treatments are typically given 2-3 times a week in a specialized light cabinet or with a handheld device for smaller areas. The type of UV light (e.g., Narrowband UVB, PUVA) and treatment duration are carefully controlled. It works by reducing inflammation and slowing down the rapid growth of skin cells. You'll be given specific instructions, including eye protection.
- When should someone consider seeing a Dermatologist like Dr. Lynde?
- A referral to a Dermatologist like Dr. Lynde is often recommended by a family physician for: any new or changing moles or skin growths; persistent or severe skin rashes (e.g., eczema, psoriasis) not responding to initial treatments; severe or cystic acne; chronic hives; significant hair loss or scalp disorders; problematic nail conditions (e.g., persistent fungal infections, unusual changes); suspected skin infections; or for expert skin cancer screening, especially if you have risk factors like a personal or family history of skin cancer, numerous moles, or significant sun exposure. Early consultation can be key for effective management and diagnosis.
- How often should I see a Dermatologist like Dr. Lynde for skin cancer screening?
- The recommended frequency for skin cancer screenings by a Dermatologist like Dr. Lynde varies based on your individual risk factors. These include a personal or family history of skin cancer (especially melanoma), having many moles (e.g., >50) or atypical moles, fair skin that burns easily, a history of excessive sun exposure or tanning bed use, or a suppressed immune system. Your family doctor can assess your risk, or Dr. Lynde can provide a personalized recommendation after an initial consultation. Regardless of professional check-ups, performing monthly self-skin exams to monitor for any new or changing lesions (using the ABCDEs of melanoma as a guide) is crucial for early detection.
25 Main St N
Markham, ON L3P 1X3
Phone: (905) 471-5022 | Fax: (905) 471-1878
The facility is wheelchair accessible.
Dr. Lynde is a licensed Dermatologist regulated by the College of Physicians and Surgeons of Ontario (CPSO) under the Regulated Health Professions Act, 1991 and Medicine Act, 1991 in ON. A referral from a family physician is typically required for consultations with Dr. Lynde for medically necessary services covered by the provincial health plan. Cosmetic consultations may have different requirements.
Verify registration with the College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/Lynde-Charles-Walter/0028507-33330