6 Causes Of Sudden Weight Gain

Written by Dr. Veena Madhankumar and medically reviewed by iCliniq medical review team


Your diet and the level of your physical activity play an essential role in maintaining your weight. But most of us are unaware of the fact that lack of physical activity and improper food consumption are not the only reasons for your weight gain.

Here are a few other reasons which can be the cause of you gaining weight.



1. It’s a thyroid problem


Hypothyroidism can be a prominent reason for unexplained weight gain. Hypothyroidism can be a result of thyroid glands not producing enough thyroxin. If you are experiencing weight gain along with other symptoms like irregular periods, constant fatigue, constipation and the inability to tolerate cold it is imperative that you meet a doctor at the earliest.

2. It’s that time of the month



Unexplained weight gain is one of the several annoying effects of going through your periods. While your body is going through PMS, you have the feeling that you are constantly bloated and crave for unhealthy food options. Hence we end up putting on a few extra kilos in this short span of time.

3. Water retention


If you have the habit of adding too much salt to your food, it might result in water retention in your body. Water retention creates a bloating feeling in your body and is also a reason for weight gain. The bloated feeling can stay for a few days and if you get dehydrated when you weigh in, it will raise the chance of water retention.

4. Stressed or depressed


Cortisol is a hormone your body releases while we are constantly under pressure of feeling depressed. Side effects of the cortisol level increase in your body include weight gain, premature aging and chronic inflammation. So it is important to keep ourselves calm and relaxed as much as possible.


5. Your birth control


Considering several factors like the dosage and brand, even your birth control can affect your weight, the chances are much higher in case you are using pills. If you have recently changed your birth control medication and you are gaining weight suddenly, you might have to consult a doctor and look for other options.

6. Getting old


Once you start hitting the higher numbers in your age scale, your metabolism starts to slow down and you start losing your lean muscle mass. As a result, you will have to take extra efforts to lose your weight and stay in shape.

Do you have a question to ask a doctor online?

Ask a Doctor Online Now »

Recommended Links
Q: I have weakness, weight gain and fluctuating BP with TSH level of 6. Please help.
I just read your query as to why your doctor does not want to prescribe any medication for your raised TSH (thyroid-stimulating hormone). Well, in my opinion, he is right because your TSH is a bit high but not above 10 w... Read more »
Q: My post delivery weight gain causes low back pain. Please help.
I am sorry to hear about your pain, but I will try my best to help you. From history, the lower back pain may be related to mechanical or disc protrusion (PIVD) or some rare conditions like a kidney stone, or pelvic inf... Read more »
Q: What can cause weight gain, sweating and tiredness?
You are having symptoms of hypothyroidism and the reports too are suggesting the same. I recommend you to start tablet Eltroxin (Levothyroxine) 50 mcg every morning in empty stomach and repeat TSH (thyroid stimulati... Read more »

Related Posts

Ask a Doctor Online? Ask Now!