Dr. Jason Aldeia Hermenegildo – Obstetrician and Gynecologist (OBGYN) | Mississauga, ON

As a skilled Obstetrician and Gynecologist (OBGYN), Dr. Jason Aldeia Hermenegildo offers a full spectrum of services from routine gynecological exams to managing complex obstetrical cases, prioritizing patient well-being and informed choice. Practicing at McMaster Children's Hospital in Mississauga, ON, he provides accessible and high-quality care to the community. His practice adheres to the standards and guidelines established by the College of Physicians and Surgeons of Ontario (CPSO). Providing comprehensive care across the full scope of Obstetrics and Gynecology, including routine and complex conditions, Dr. Hermenegildo is dedicated to supporting women through all stages of life, from adolescent health to postmenopausal care. He is committed to fostering a compassionate environment where patients feel heard, informed, and empowered in their health decisions.

Dr. Hermenegildo graduated with a Medical Degree from the University of Toronto in 2018.0 (Canada). He has been practicing as a specialist in Obstetrician and Gynecologist (OBGYN) since 2023. He is certified as a RCPSC Specialist, demonstrating his expertise and commitment to maintaining the highest standards of medical excellence. His training includes comprehensive obstetric and gynecological education, equipping him to address a broad range of women's health issues with evidence-based approaches and personalized care.

With a focus on patient-centered care, Dr. Hermenegildo emphasizes shared decision-making and tailored treatment plans that respect each woman's unique needs and preferences. He is dedicated to advancing women's health in Mississauga through compassionate, respectful, and comprehensive services. Fluent in English and Portuguese, he strives to ensure clear communication and understanding for all patients, fostering trust and confidence in his care.

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

Menstrual and Hormonal Disorders

• Abnormal Uterine Bleeding (Heavy, Irregular, Prolonged Periods): Menstrual bleeding that is different in frequency, duration, or amount than what is typical for an individual, requiring investigation.
• Thyroid Disorders affecting Gynecologic Health: Conditions like hypothyroidism or hyperthyroidism that can impact menstrual cycles, fertility, and pregnancy outcomes.
• Amenorrhea (Absence of Menstruation): The absence of menstrual periods, either primary (menarche never occurred) or secondary (periods ceased after previously being regular).

Infertility and Reproductive Health

• Uterine Factors Affecting Fertility (e.g., Septum, Asherman's Syndrome): Structural abnormalities or conditions of the uterus that can interfere with implantation or pregnancy maintenance.
• Fallopian Tube Disorders (Blockage, Hydrosalpinx, Adhesions): Conditions affecting the fallopian tubes, such as blockages or scarring, that can prevent sperm from reaching the egg or a fertilized egg from reaching the uterus.
• Female Infertility Evaluation & Initial Management: Comprehensive assessment to identify potential causes of difficulty conceiving in women and initiation of basic treatments.

Screening and Preventative Care

• Breast Cancer Screening Awareness & Clinical Breast Exams: Performing clinical breast exams and advising on mammography guidelines and breast self-awareness for early detection.
• Cervical Cancer Screening (Pap Tests & HPV Testing): Regular screening to detect precancerous changes or cancer of the cervix, primarily through Pap tests and HPV DNA testing.
• Sexually Transmitted Infections (STIs) Screening & Counseling: Testing for common STIs based on risk factors and symptoms, along with counseling on prevention and safe practices.

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. Jason Hermenegildo or your primary care physician for a comprehensive evaluation and appropriate referral if needed.

• Labor and Delivery Management (Vaginal & Cesarean): Professional medical care and support during labor and childbirth, including management of vaginal deliveries, assisted vaginal deliveries (forceps/vacuum if needed), and planned or emergency Cesarean sections (C-sections).
• Annual Gynecological Exams & Well-Woman Care: Routine check-ups including pelvic exams, clinical breast exams, preventative health screenings, and discussion of overall gynecological health.
• Pelvic Pain Evaluation & Chronic Pelvic Pain Management: Comprehensive assessment and multidisciplinary treatment strategies for acute and chronic pelvic pain, identifying potential causes such as endometriosis, fibroids, or PID.
• Endometrial Ablation & Resection: Minimally invasive procedures to destroy or remove the lining of the uterus (endometrium) to treat heavy menstrual bleeding in appropriate candidates.
• Postpartum Care & Follow-up: Medical follow-up and support for mothers in the weeks following childbirth, addressing physical recovery, incision care (if applicable), breastfeeding support, contraception planning, and screening for postpartum mood disorders.
• Hysterectomy (Abdominal, Vaginal, Laparoscopic, Robotic-Assisted): Surgical removal of the uterus, performed through various approaches including minimally invasive techniques, depending on the medical indication and patient factors.
• 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.

Note: This list may provide an overview of common services in Obstetrics and Gynecology. Dr. Hermenegildo 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. Hermenegildo practices at McMaster Children's Hospital, located in the Churchill Meadows neighborhood of Mississauga, ON. The facility is conveniently situated near the Riverwood Conservancy and Winston Churchill Transitway Station, with easy access via MiWay (Mississauga Transit). The hospital is wheelchair accessible and offers parking facilities for patients and visitors, ensuring comfort and ease of access for all.

Are services from Dr. Hermenegildo, 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. Hermenegildo 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. Hermenegildo, 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. Hermenegildo 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. Hermenegildo's office or your referring doctor.

How can Dr. Hermenegildo help with menopause symptoms?

Dr. Hermenegildo can help manage bothersome menopause symptoms such as hot flashes, night sweats, vaginal dryness, mood changes, sleep disturbances, and bone density concerns. Treatment options may include lifestyle modifications (diet, exercise, stress reduction), non-hormonal medications, vaginal estrogen for localized symptoms, or systemic hormone replacement therapy (HRT) after a thorough discussion of the benefits and risks based on your individual health profile and preferences.

What are the treatment options for endometriosis that Dr. Hermenegildo might recommend?

Treatment for endometriosis aims to manage pain and improve fertility if desired. Options vary based on symptom severity and patient goals and can include pain medications (NSAIDs), hormonal therapies (like birth control pills, progestins, GnRH agonists) to suppress endometrial tissue growth, and surgical treatments (laparoscopy) to remove endometrial implants and scar tissue. Dr. Hermenegildo will discuss the most appropriate approach for your situation.

Does Dr. Hermenegildo manage high-risk pregnancies?

Many OBGYNs manage a range of pregnancies, including some with moderate risk factors. If your pregnancy is considered high-risk due to specific maternal or fetal conditions, Dr. Hermenegildo 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. Hermenegildo.

When should a teenager have her first OBGYN visit, and what does it involve?

The first visit to an OBGYN for a teenager is often recommended between ages 13-15, or sooner if there are specific concerns like very painful periods, irregular cycles, or questions about sexual health. This initial visit may not involve a pelvic exam unless there's a specific medical reason. It's primarily an opportunity to build a rapport with Dr. Hermenegildo, discuss normal development, menstrual health, contraception, STI prevention, and answer any questions in a confidential setting.

McMaster Children's Hospital
2000 Credit Valley Road, Department of Pediatrics
Mississauga, ON L5M 4N4

Phone: (905) 820-8748 | Fax: (866) 820-5299

The facility is wheelchair accessible.

Dr. Hermenegildo 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/Hermenegildo-Jason-Aldeia/0325331-115550