Thyroidism in Pregnancy: What Every Woman Should Know About Common Thyroid Disorders
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What causes hypothyroidism in women during pregnancy? Learn from Best Lady Gynecologist
By SaimaJaved
| December 11, 2025
Thyroid Health During Pregnancy are among the most common hormonal issues women face during pregnancy. Because the thyroid gland controls metabolism, temperature, energy levels, and fetal brain development, even a small imbalance can impact a mother’s health and her baby’s growth. Expecting mothers often seek the best lady gynecologist in Kolkata to understand how thyroid hormones fluctuate during pregnancy and how timely treatment can ensure a safe, healthy pregnancy.
Table of Contents
This comprehensive guide—based on evidence-based medical insight and women’s hormonal health expertise by Dr. Saima Javed, who is also known for her specialized approach to hormonal replacement therapy for menopause—explains everything you must know about thyroid disorders during pregnancy, their symptoms, risks, diagnosis, and management.
What should pregnant women know about thyroid disorders?
Pregnant women must know that thyroid disorders such as hypothyroidism, hyperthyroidism, and autoimmune thyroid disease can affect fetal development and pregnancy health. Early testing, timely medication, regular monitoring, and specialist care from an expert like Dr. Saima Javed, the best lady gynecologist in Kolkata, are essential for preventing complications like miscarriage, preterm birth, and developmental issues.
1 – Understanding Thyroid Function During Pregnancy
How the Thyroid Gland Works
The thyroid produces hormones—T3 and T4—that support:
Metabolism
Heart rate
Temperature regulation
Protein synthesis
Brain development
Why Pregnancy Puts Extra Pressure on the Thyroid?
During pregnancy:
The body requires 50% more thyroid hormones
hCG stimulates the thyroid
Estrogen increases thyroid-binding proteins
The fetus depends entirely on the mother’s thyroid hormones until week 12
This makes pregnant women more likely to develop thyroid issues.
2 – Common Thyroid Disorders During Pregnancy
1. Hypothyroidism (Underactive Thyroid)
What it is:
Thyroid fails to produce adequate hormones.
Causes:
Autoimmune thyroiditis (Hashimoto’s disease)
Iodine deficiency
Prior thyroid surgery
Genetics
Common Symptoms:
Fatigue
Constipation
Weight gain
Dry skin
Cold intolerance
Hair thinning
2. Hyperthyroidism (Overactive Thyroid)
What it is:
Thyroid produces excessive hormones.
Causes:
Graves’ disease (most common)
Thyroid nodules
Overactive immune system
Symptoms:
Weight loss
Rapid heartbeat
Anxiety
Excess sweating
Tremors
3. Postpartum Thyroiditis
Occurs within 12 months after delivery. It can cause:
Temporary hyperthyroidism
Followed by hypothyroidism
4. Autoimmune Thyroid Disorders
Includes:
Hashimoto’s thyroiditis
Graves’ disease
Pregnancy can either:
Improve symptoms
Or worsen them
3 – Risk Factors for Thyroid Problems in Pregnancy
You are at higher risk if you have:
History of thyroid disease
Family history of autoimmune disorders
PCOS
Type 1 diabetes
Prior miscarriage
Goiter
Previous infertility or IVF pregnancy
Age over 30
4 – Symptoms to Watch For
Hypothyroidism Symptoms in Pregnancy
Excessive tiredness
Swelling in face or feet
Feeling cold
Loss of appetite
Slow heartbeat
Palpitations
Heat intolerance
Severe nausea
Anxiety
Weight loss
How Thyroid Disorders Affect the Mother?
Possible complications include:
High blood pressure
Preeclampsia
Anemia
Miscarriage
Placental problems
Postpartum hemorrhage
How Thyroid Disorders Affect the Baby?
Serious consequences include:
Low birth weight
Preterm birth
Stillbirth
Developmental delays
Impaired brain development (if untreated hypothyroidism)
How Dr. Saima Javed Helps Women Across All Stages?
As the best lady obstetrician in Kolkata, Dr. Saima Javed provides a complete hormonal evaluation and offers:
Personalized thyroid management
Guidance on pregnancy-safe thyroid treatment
Tailored hormonal replacement therapy for menopause
Long-term hormonal health monitoring
Her integrated approach ensures women feel supported in pregnancy, postpartum, and menopause.
Hypothyroidism vs Hyperthyroidism in Pregnancy
Feature
Hypothyroidism
Hyperthyroidism
Hormone Level
Low
High
Common Cause
Hashimoto’s
Graves’ disease
Symptoms
Fatigue, weight gain
Anxiety, weight loss
Risk to Mother
Preeclampsia
Heart failure (rare)
Risk to Baby
Low IQ, preterm birth
Growth restriction
Treatment
Levothyroxine
Anti-thyroid medications
10 – Why Choose Dr. Saima Javed?
Why She Is Considered the Best Lady Gynecologist in Kolkata?
Expertise in maternal thyroid management
Holistic hormonal care
Excellence in high-risk pregnancy cases
Advanced diagnostic approach
Patient-centric counselling
Why Women Trust Her for Hormonal Replacement Therapy for Menopause?
Evidence-based treatment
Customized hormone plans
Focus on long-term health
Balanced approach to risks & benefits
Conclusion
Thyroid disorders during pregnancy are common but highly manageable with early diagnosis, regular monitoring, and expert care. With guidance from a specialist like Dr. Saima Javed, recognized as the best lady obstetrician in Kolkata, women can enjoy a safe pregnancy while also receiving support for long-term hormonal health, including personalized hormonal replacement therapy for menopause.
FAQs
Q1: What are the common thyroid disorders during pregnancy?
Hypothyroidism, hyperthyroidism, and autoimmune thyroid disease are the most common.
Q2: What tests check thyroid levels during pregnancy?
TSH, T3, T4, and anti-TPO antibodies are essential tests.
Q3: Can thyroid problems harm the baby?
Yes, untreated thyroid issues can affect growth and brain development.
Q4: Who is the best lady gynecologist in Kolkata for thyroid issues in pregnancy?
Dr. Saima Javed is widely trusted for thyroid-related pregnancy care and hormonal expertise.
Q5: Is hormonal replacement therapy for menopause safe for women with thyroid disorders?
Yes, but it must be customized by a specialist like Dr. Saima Javed for safety and balance.
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