Hormones & periods
Hypothyroidism Symptoms in Women: Early Signs, Causes and When to See a Doctor
Quick answer
Common symptoms of hypothyroidism in women are tiredness, weight gain, feeling cold, constipation, dry skin, thinning hair, low mood and heavy or irregular periods. Symptoms usually develop slowly and can be mistaken for stress or ageing. A simple blood test can confirm it, and it is usually well managed with treatment from a doctor.
Last reviewed NariCareLife editorial team · 4 sources
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What is Hypothyroidism?
Hypothyroidism, or an underactive thyroid, means the thyroid gland in your neck is not making enough thyroid hormone. This hormone helps control how your body uses energy, so when levels are low, many body processes slow down.
It is much more common in women than in men and can develop at any age, including during pregnancy or after childbirth. In many women it is caused by an autoimmune condition in which the immune system affects the thyroid.
Symptoms vary a lot. Some women notice very few changes, while others feel tired and unwell for months before they are diagnosed. Because the signs build gradually and overlap with everyday stress, a blood test is the only reliable way to know.
Common symptoms of Hypothyroidism
Tiredness and low energy
Feeling tired even after rest, or finding daily tasks more draining than usual.
Weight gain
Gaining some weight without a clear change in eating or activity. Much of this can be fluid rather than fat.
Feeling cold
Feeling chilly when others are comfortable, especially in the hands and feet.
Constipation
Slower digestion can make bowel movements less frequent or harder to pass.
Dry skin and thinning hair
Skin may feel rough or dry, and hair may become coarse, brittle or thinner, including the outer eyebrows.
Heavy or irregular periods
Periods may become heavier, longer or less predictable. Low thyroid hormone can also affect fertility.
Low mood and slow thinking
Some women notice low mood, poor concentration, forgetfulness or feeling mentally foggy.
Muscle aches and cramps
Muscles may feel weak, stiff or achy, and cramps can be more common.
Puffy face and hoarse voice
Some people notice puffiness around the eyes or face, or a deeper, hoarse voice.
Swelling in the neck
An enlarged thyroid (goitre) can sometimes be seen or felt as a swelling at the front of the neck.
What can cause Hypothyroidism?
- Autoimmune thyroiditis (Hashimoto’s thyroiditis), where the immune system gradually damages the thyroid, is a common cause.
- Not getting enough iodine in the diet can cause hypothyroidism, which is why iodised salt is widely used in India.
- Previous thyroid surgery or radioactive iodine treatment for an overactive thyroid can lead to low thyroid hormone.
- Some medicines, such as lithium and amiodarone, can affect how the thyroid works.
- Thyroid inflammation after pregnancy (postpartum thyroiditis) can cause temporary or sometimes long-term hypothyroidism.
- Having a family history of thyroid disease or another autoimmune condition, such as type 1 diabetes or vitiligo, raises the risk.
How is Hypothyroidism diagnosed?
A doctor usually checks for hypothyroidism with a blood test that measures thyroid-stimulating hormone (TSH) and often free thyroxine (T4). A raised TSH with a low T4 suggests an underactive thyroid. Your doctor may also test for thyroid antibodies to look for an autoimmune cause, examine your neck, and ask about your symptoms, periods, medicines and family history. If you are pregnant or planning a pregnancy, thyroid tests may be interpreted differently, so tell your doctor.
When to see a doctor
See a doctor if you have ongoing tiredness, unexplained weight gain, feeling cold, constipation, dry skin or changes in your periods, especially if several of these appear together. It is also worth asking about a thyroid test if you have a family history of thyroid disease, have recently had a baby, or are planning a pregnancy. If you already take thyroid medicine, keep your follow-up blood tests and speak to your doctor before changing how or when you take it.
Get medical help promptly if you notice:
- Extreme drowsiness, confusion or feeling very cold and unwell, which needs emergency medical care.
- A swelling in the neck that is growing quickly, or that makes it hard to swallow or breathe.
- Thyroid symptoms during pregnancy or while trying to conceive.
- Chest pain, a very slow heartbeat or fainting.
- Severe low mood or thoughts of harming yourself.
In an emergency, call 112 or go to the nearest hospital.
How nutrition and lifestyle may help
Food does not cure or treat Hypothyroidism, but everyday habits can support your overall wellbeing alongside the care your doctor recommends.
Keep medical treatment at the centre
Food can support your wellbeing but cannot replace thyroid medicine. Take it exactly as prescribed, and ask your doctor about any questions on timing around meals, tea, coffee or other supplements.
Use iodised salt, in moderation
Cooking with iodised salt is a simple way to meet everyday iodine needs. Do not take iodine or selenium supplements unless your doctor advises them.
Build meals around protein and fibre
Dal, curd, paneer, eggs or fish with whole grains and vegetables may help support steady energy and fullness through the day.
Ease constipation gently
Fibre from vegetables, fruits, whole grains and pulses, plus enough water, may help support regular bowel movements.
Stay active in ways you enjoy
Regular walking, yoga or strength exercises can support energy, mood and weight management alongside treatment.
Do not fear everyday vegetables
Cooked cabbage, cauliflower and other common vegetables are generally fine as part of a varied diet. Discuss any specific food concerns with your doctor or dietitian.
Indian foods to include
- Moong, masoor and toor dal
- Curd and buttermilk (chaas)
- Paneer
- Eggs
- Fish such as rohu or pomfret
- Millets such as jowar, bajra and ragi
- Seasonal vegetables such as lauki, bhindi and palak
- Fruits such as guava, papaya and oranges
- A small handful of nuts and seeds
Key takeaways
- Hypothyroidism is common in women and often develops slowly.
- Tiredness, weight gain, feeling cold and period changes are frequent early signs.
- A TSH blood test is the usual way to check your thyroid.
- Thyroid medicine prescribed by a doctor is the main treatment; food supports but does not replace it.
- Balanced Indian meals, iodised salt and regular activity can support day-to-day wellbeing.
Hypothyroidism: frequently asked questions
The first signs of hypothyroidism are often tiredness, feeling cold, mild weight gain and constipation. Some women first notice dry skin, thinning hair or heavier periods. These changes usually build slowly over months, so they are easy to blame on stress or a busy life. If several appear together, ask your doctor about a thyroid blood test.
Yes, hypothyroidism can cause some weight gain, because a slower metabolism and fluid retention can add a few kilos. The gain is usually modest. Once thyroid levels are treated and stable, balanced meals, regular activity and good sleep can support healthy weight management. Large or rapid weight gain may have other causes and is worth discussing with a doctor.
Yes, hypothyroidism can make periods heavier, longer or irregular, and it can make it harder to conceive. Untreated thyroid problems during pregnancy may also affect the pregnancy. If you are trying to conceive or are pregnant, tell your doctor about any thyroid history so your levels can be checked and managed carefully.
Hypothyroidism is usually a long-term condition, but it is very manageable. Most women take daily thyroid hormone medicine prescribed by a doctor and have regular blood tests to adjust the dose. Some types, such as thyroiditis after pregnancy, can be temporary. Your doctor can explain which type you have and what to expect.
No, diet alone cannot fix an underactive thyroid. Thyroid medicine prescribed by a doctor replaces the missing hormone. A balanced diet with iodised salt, protein, fibre and plenty of vegetables can support your overall energy and wellbeing alongside treatment. Avoid iodine or selenium supplements unless your doctor recommends them, as too much can cause harm.
The main blood test for hypothyroidism is thyroid-stimulating hormone (TSH), often checked together with free T4. A high TSH usually means the thyroid is underactive. Your doctor may also test thyroid antibodies to look for an autoimmune cause. Results are interpreted along with your symptoms, age and whether you are pregnant.
Sources & references
- Underactive thyroid (hypothyroidism) — NHS
- Hypothyroidism (Underactive Thyroid) — National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Hypothyroidism — MedlinePlus, U.S. National Library of Medicine
- Thyroid disease — Office on Women’s Health, U.S. Department of Health and Human Services
