Meena Gopal Meena Gopal Asked 8 months ago

Can infection cause weight gain?

I've been battling a chronic infection for a few months now, and I've also noticed a steady increase in my weight despite no major changes in diet. Could this infection be causing my weight gain?

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10 answers

Vikram Rathore Vikram Rathore Joined Apr 2026 6 months ago
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Actually, some infections cause temporary water retention due to inflammation, which might look like weight gain on the scale. Once you recover and get back to your regular physical activity and clean eating, your body weight usually balances out naturally.

Sister Lisha Mathew Sister Lisha Mathew Joined Mar 2026 8 months ago

Sometimes chronic infections or the medications used to treat them, like certain steroids, can lead to weight gain or fluid retention. It is not the infection itself directly raising fat, but how the body reacts. Keep hydrated and discuss your symptoms with your doctor.

Manpreet Kaur Manpreet Kaur Joined Jan 2026 8 months ago

My son had a severe gut infection once and suddenly bloated up, which made him look like he gained weight overnight. It turned out to be severe fluid retention and bloating. Once we completed the doctor's prescribed treatment, his body returned to normal.

Tanvi Rao Tanvi Rao Joined Feb 2026 8 months ago

With PCOS, I know how easily the scale moves due to inflammation. Sometimes an infection can trigger a lot of internal stress and inflammation, leading to temporary weight fluctuations. It is best to be gentle with yourself and get a doctor to check what is going on.

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Rajesh Nair Rajesh Nair Joined Feb 2026 8 months ago

Yes, I went through this during a chronic sinus infection. The lack of activity and mild swelling made me gain a few kilos. My advice is to focus on light, home-cooked food, drink plenty of warm water, and avoid self-medicating with random pills.

Ganga Devi Ganga Devi Joined Feb 2026 8 months ago

Yes, sickness can sometimes cause puffiness and bloating in the body. While you are recovering, drink some warm ginger water or tulsi tea to help soothe your digestion. But do make sure a doctor examines you to find the root cause.

Deepak Chawla Deepak Chawla Joined Mar 2026 8 months ago

Honestly, I literally just went through this last month! After a bad stomach infection, my scale showed 3 kgs extra, mostly because of bloating and the heavy antibiotics I was taking. It took about two weeks of light eating and curd-rice to get back to normal.

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Arjun Mehta Arjun Mehta Joined Mar 2026 8 months ago

An infection can trigger inflammatory responses that make the body hold onto water weight. If your doctor allows, doing a very gentle 15-minute walk can help improve circulation and reduce bloating, but don't push yourself too hard while recovering.

Vijay Shankar Vijay Shankar Joined Mar 2026 7 months ago

In my experience, when the body is fighting off an infection, you tend to move less and sometimes eat comfort food, which can cause minor weight gain. Don't worry too much about it right now; focus entirely on recovering your strength first.

Karthik Subramanian Karthik Subramanian Joined Apr 2026 6 months ago

My grandmother always says that fever and infections can cause body swelling or 'neeru' which looks like weight gain. However, we must trust scientific diagnosis, so please consult your doctor to understand if it is fluid retention or something else.

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