Dr. Om answers

One question per page, answered in plain language, with a link to the full guide.

• Can I get pregnant with PCOS?Yes, most women with PCOS can get pregnant, either naturally or with simple fertility treatment. PCOS makes ovulation irregular, so it may take longer, and getting fit before pregnancy, checking your sugar and treating any thyroid problem all improve your chances. If you have very irregular periods, or have been trying for six to twelve months without success, see your doctor, who may discuss ovulation medicines such as letrozole.
• Can I take my thyroid tablet with tea?It is better not to swallow your thyroid tablet with tea or coffee. Coffee is known to reduce how much levothyroxine your body absorbs, and tea with milk is likely to do the same, so doctors usually suggest plain water and a gap of 30 to 60 minutes before your morning cup. If that is truly impossible, keeping the same routine every day and telling your doctor matters more than perfection.
• Can thyroid problems cause weight gain?Yes, an underactive thyroid can cause some weight gain, but usually only a few kilos, and much of it is retained salt and water rather than fat. When the thyroid is treated, people often lose a little of this, but treatment rarely leads to large weight loss. If you have gained a lot of weight, other causes such as diet, sleep, medicines, PCOS or insulin resistance are usually more important and worth discussing.
• Do weight-loss injections cause hair loss?Yes, some people notice more hair fall while on GLP-1 medicines such as semaglutide or tirzepatide, and a 2026 analysis of trials found it was reported more often than with placebo, in a small minority of users. Most of it appears to be a temporary shedding linked to rapid weight loss and eating less, which usually recovers over months. Low protein, iron, vitamin B12 or thyroid problems can add to it, so these are worth checking with your doctor.
• Does insulin damage the kidneys?No, insulin does not damage the kidneys, while long-standing high blood sugar and high blood pressure do. Good sugar control, including with insulin when needed, lowers the risk of diabetic kidney disease, and insulin is often one of the safest options for people whose kidneys are already weak. The myth arises because insulin is often started late, when kidney damage has already happened.
• Does PCOS go away after marriage or pregnancy?No, marriage does not change PCOS, and pregnancy does not make it go away, although periods may become more regular for a while after having a baby. PCOS is a long-term hormonal and metabolic condition, and its features often ease with weight loss and with age, while the risk of diabetes and heart disease continues. Lifelong healthy habits and regular check-ups matter more than any life event.
• Should I fast before a thyroid test?Fasting is not strictly needed for a thyroid test, but TSH is a little higher in the early morning and slightly lower later in the day and after food. The best approach is to test at a similar time and in a similar state each time, often in the morning, so one report can be compared with the next. If you take thyroid tablets or biotin supplements, ask your doctor how to time them around the test.
• Why do my glucometer and lab readings differ?A home glucometer and a lab test measure sugar in different samples, at different times and with different methods, so a difference of around 15% is expected and allowed by international accuracy standards. Bigger gaps usually come from technique, old or badly stored strips, timing after food, or a lab sample that waited too long before testing. If the gap is large or keeps happening, check your meter against a lab sample taken at the same time and show the results to your doctor.