Dr. Mary Ming Lai Cheng – Obstetrician and Gynecologist (OBGYN) | Scarborough, ON

As a skilled Obstetrician and Gynecologist (OBGYN), Dr. Mary Ming Lai Cheng offers a full spectrum of services from routine gynecological exams to managing complex obstetrical cases, prioritizing patient well-being and informed choice. Practicing at Brampton Civic Hospital in Scarborough, ON, she provides accessible and high-quality care to the community. Her practice adheres to the standards set by the College of Physicians and Surgeons of Ontario (CPSO). Dr. Cheng is dedicated to providing comprehensive care across the full scope of Obstetrics and Gynecology, including routine and complex conditions. She is committed to supporting women through all stages of life, from reproductive health and pregnancy to menopause and beyond, with a compassionate and empathetic approach.

Dr. Cheng graduated with a Medical Degree from Li Ka Shing Faculty of Medicine, University of Hong Kong in 1985.0 (Hong Kong). She has been practicing as a specialist in Obstetrician and Gynecologist (OBGYN) for over 30 years, since 1994. She is certified as a RCPSC Specialist, demonstrating her commitment to maintaining the highest standards of medical excellence and ongoing professional development. Her extensive experience allows her to provide expert care tailored to each woman's unique health needs and circumstances.

Guided by a philosophy of patient-centered care, Dr. Cheng emphasizes shared decision-making and evidence-based practices. She is dedicated to promoting women’s health in Scarborough through compassionate, respectful, and personalized care. She speaks Cantonese, English, and Mandarin, enabling her to effectively communicate with a diverse patient population and ensure that every woman feels heard, understood, and supported during her healthcare journey.

Dr. Mary Cheng provides care for a wide spectrum of women's health issues, including:

Sexual Health and Dysfunction

• Vaginismus: Involuntary muscle spasms in the pelvic floor muscles that make vaginal penetration painful or impossible.
• Decreased Libido / Sexual Desire Disorders: Persistent lack of sexual interest or desire, which can have various physical or psychological causes.
• Dyspareunia (Painful Intercourse): Persistent or recurrent genital pain that occurs just before, during or after sexual intercourse.

Gynecologic Cancers and Precancerous Conditions

• Cervical Dysplasia (CIN) & Cervical Cancer: Precancerous changes (Cervical Intraepithelial Neoplasia) or malignant tumors of the cervix, the lowermost part of the uterus, often linked to HPV infection.
• Gestational Trophoblastic Disease (GTD) (e.g., Molar Pregnancy): A group of rare pregnancy-related tumors that develop in the uterus from cells that normally form the placenta, requiring careful monitoring and treatment.
• Vulvar Intraepithelial Neoplasia (VIN) & Vulvar Cancer: Precancerous changes (VIN) or malignant tumors affecting the external female genitalia (vulva).

Menstrual and Hormonal Disorders

• Menopause & Perimenopausal Symptoms: The natural cessation of menstruation and the preceding transitional period, often accompanied by symptoms like hot flashes, night sweats, vaginal dryness, and mood changes.
• Amenorrhea (Absence of Menstruation): The absence of menstrual periods, either primary (menarche never occurred) or secondary (periods ceased after previously being regular).
• Dysmenorrhea (Painful Periods): Cramping and pelvic pain associated with menstruation, which can range from mild to severe and impact daily activities.

This list highlights some common conditions managed within Obstetrics and Gynecology and is not exhaustive. For personalized advice regarding your specific health concerns, please schedule a consultation with Dr. Mary Cheng or your primary care physician for a comprehensive evaluation and appropriate referral if needed.

• Management of Common Pregnancy Complications: Diagnosis and treatment of conditions such as nausea and vomiting of pregnancy (hyperemesis gravidarum), gestational diabetes (in conjunction with specialists if needed), hypertensive disorders, and preterm labor risk assessment and prevention strategies.
• Laparoscopic Surgery for Endometriosis & Ovarian Cysts (Excision/Ablation): Minimally invasive surgical techniques for diagnosing and treating endometriosis implants (excision or ablation) and removing benign ovarian cysts.
• Pap Tests, HPV Testing & Cervical Cancer Screening (Colposcopy, LEEP): Cervical cancer screening through Pap tests and HPV testing, with follow-up diagnostic procedures like colposcopy and treatment for precancerous changes (e.g., LEEP - Loop Electrosurgical Excision Procedure).
• Menopause & Perimenopause Symptom Management: Personalized guidance and treatment options for symptoms associated with menopause, including hot flashes, vaginal dryness, sleep issues, and discussion of hormone replacement therapy (HRT) and non-hormonal alternatives.
• Management of Menstrual Disorders & Abnormal Uterine Bleeding: Diagnosis and treatment for conditions like heavy menstrual bleeding (menorrhagia), irregular periods, painful periods (dysmenorrhea), amenorrhea (absence of periods), and premenstrual syndrome (PMS)/PMDD.
• Tubal Ligation / Salpingectomy for Sterilization: Surgical methods for permanent female contraception, including removal of fallopian tubes (salpingectomy) which may also reduce ovarian cancer risk.
• Diagnosis & Treatment of Vaginal Infections & Sexually Transmitted Infections (STIs): Management of conditions such as yeast infections, bacterial vaginosis, trichomoniasis, and screening/treatment for STIs like chlamydia, gonorrhea, syphilis, and HIV counseling.

Note: This list may provide an overview of common services in Obstetrics and Gynecology. Dr. Cheng provides a wide array of diagnostic, therapeutic, and surgical options tailored to individual patient needs within women's health, pregnancy, and childbirth. Specific services offered can be confirmed by contacting the clinic.

All medical and surgical services are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of Ontario (CPSO). A referral may be required for insured services.

Dr. Cheng practices at Brampton Civic Hospital, located in the areas near central Scarborough. The hospital is conveniently situated close to local points of interest and is easily accessible via local public transit. The facility is wheelchair accessible, ensuring ease of access for all patients. Paid parking options are available nearby, offering convenience for those driving to appointments. The hospital’s central location makes it an ideal choice for women in Scarborough seeking comprehensive obstetric and gynecological care in a welcoming environment.

Are services from Dr. Cheng, an Obstetrician and Gynecologist, covered by Ontario Health Insurance Plan (OHIP) in ON?

Medically necessary consultations, prenatal care, delivery, gynecological surgeries, and diagnostic procedures performed by a licensed Obstetrician and Gynecologist like Dr. Cheng are generally covered by Ontario Health Insurance Plan (OHIP) in ON when you have a valid referral from your family doctor or another referring physician. Some elective procedures, certain fertility treatments, or non-medically indicated services may not be covered. It's always recommended to confirm specific coverage details with Ontario Health Insurance Plan (OHIP) or the clinic.

Do I need a referral from my family doctor to see Dr. Cheng, an Obstetrician and Gynecologist?

Yes, for services to be covered by your provincial health plan (Ontario Health Insurance Plan (OHIP)), a referral from your family physician or another specialist is typically required to see an Obstetrician and Gynecologist like Dr. Cheng for most consultations and treatments. This ensures coordinated care. Some specific services or clinics (e.g., some sexual health or contraception clinics) might have different access pathways, but for ongoing obstetrical or gynecological care, a referral is standard. Please check with Dr. Cheng's office or your referring doctor.

What birth control options can Dr. Cheng discuss with me?

Dr. Cheng can discuss a wide range of contraceptive options tailored to your individual needs and preferences. These include hormonal methods (like birth control pills, patches, vaginal rings, injections, hormonal IUDs, contraceptive implants), non-hormonal methods (like copper IUDs, condoms, diaphragms, cervical caps), and permanent sterilization methods (tubal ligation or Essure for women, vasectomy referral for men). The best option depends on your health, lifestyle, menstrual cycle characteristics, and family planning goals. Dr. Cheng will help you make an informed choice.

Does Dr. Cheng manage high-risk pregnancies?

Many OBGYNs manage a range of pregnancies, including some with moderate risk factors. Dr. Cheng has a particular focus on/experience with managing high-risk pregnancies, which may include conditions like gestational diabetes, preeclampsia, multiple gestations (twins/triplets), or pre-existing maternal health issues. If your pregnancy is considered high-risk due to specific maternal or fetal conditions, Dr. Cheng will provide comprehensive care and may work closely with, or refer you to, a Maternal-Fetal Medicine (MFM) specialist if needed for highly specialized management. It's best to discuss your specific situation with Dr. Cheng.

What are my options for pain management during labor discussed by Dr. Cheng?

Dr. Cheng will discuss various pain relief options for labor, which can range from non-medical methods (like breathing techniques, movement, massage, hydrotherapy if available) to medical options such as nitrous oxide, narcotic pain medication, and epidural anesthesia. The choice depends on your preferences, medical condition, and the progress of your labor. It's a good idea to discuss your pain management plan with Dr. Cheng during your prenatal visits.

How often do I need a Pap test, and what is it for?

A Pap test (or Pap smear) is a screening procedure for cervical cancer. It checks for precancerous or cancerous cells on the cervix. Guidelines vary slightly by province but are generally recommended for women starting around age 21-25 (or once sexually active) and continuing every 2-3 years if results are normal. The frequency may change based on your age, medical history (including HPV status), and previous Pap test results. Dr. Cheng will advise you on the appropriate screening schedule for your individual circumstances based on current provincial guidelines.

Brampton Civic Hospital
4190 Finch Avenue East
Scarborough, ON M1S 4T7

Phone: (416) 282-0644 | Fax: (416) 282-7835

The facility is wheelchair accessible.

Dr. Cheng is a licensed Obstetrician and Gynecologist 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 your family physician or another qualified healthcare provider is typically required for provincially insured consultations and treatments.

Verify registration with the College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/Cheng-Mary-Ming-Lai/0049030-63008