Reasons For Weight Gain After Surgery

Did you gain weight after being surgically operated? Do you experience much fluid retention after surgery?

Several factors can lead to sudden or inevitable weight gain. Still, a recent surgery is one major factor that plays a part in it. Often this weight gain happens during the follow-up era.

Anyone seeking weight loss surgery is hoping their weight loss problems will stop. The fight continues for many, and some will recover all their weight. No one factor leads to weight gain, but many others. Below are the top 6 weight gain factors after a weight loss surgery.

Are you unhappy with your gained weight, or have you had fluid retention after surgery?

Many factors can slowly or unexpectedly contribute to weight gain. Still, one main factor plays a major role in a recent surgery. This weight gain occurs during the follow-up phase that should follow after the operation. One disorder is an increase in weight following C- section following birth. According to the Pregnancy Risk Assessment Monitoring System (PRAMS), the post-pregnancy weight gain has risen by 70 percent recently.

Skipping your meals

You miss out on the calories and nutrients that your body requires at that time of day when you skip a meal. You can’t eat anything at your next meal, mentally, as you would have done before surgery. Consuming less and fewer calories isn’t going to help you lose weight. In reality, you can avoid weight loss and reduce your metabolism. At some point in time, a lower metabolism would offer equivalent weight gain. The longer you go without having to feed, the more hungry you get. Hunger contributes to food choices that are excessive and/or bad.

Junk foods

I hypothesize that (1) many postoperative meals consist of lighter foods. You only want to bite down and hear a pretzel or chip snap. (2) Many patients have very low sodium diets, with better eating patterns. But for others, this is perfect. Their bodies are trying to tell them, “Hey, I need some salt in here! “One concern is how easy to handle snack foods. Food that crumbles or melts in your small stomach won’t take up a lot of space, which makes it easy to eat and easy to over-eat. However, the issue is that snacking becomes more common and induces a decline in dietary balanced foods. More food that isn’t of great quality value is being eaten.

No exercise

Weight loss is said to be about 80% diet and 20% physical activity. Although the percentage is poor, exercise is necessary for weight loss and for maintaining weight. In my experience, training in the recovery process becomes more important than the losing process. Exercising creates metabolically activated muscle. That means the more calories you burn at rest, the more muscle you have. Your metabolism is essentially getting more effective.


If somebody has stress that causes body hormonal imbalances. Again this is responsible for the prolonged accumulation of fluids. When there is surgical discomfort, the level of antidiuretic hormone or ADH is naturally increased. This antidiuretic hormone helps the kidneys absorb water from the body. But this again somehow leads to weight gain. Besides, to deal with post-surgery complications, the patient must ingest a combination of racing medications through their systems. Ultimately, these intravenous medications cause fluid changes and also cause water retention.

Hormonal equilibrium may be caused by both physical and psychological stress, resulting in weight gain further. Long-term stress activates the adrenal glands, and this results in cortisol hormone secretion.

The research found that people who have undergone cardiac operations are more susceptible to surgical stress, which enhances the secretion of both antidiuretic hormones (ADH) and cortisol hormones. A rise in the amount of ADH can disrupt the kidneys’ functioning and can cause water retention.


Normally, patients take rests for a few days after surgery to dry up the surgical field. Some of them have a few months to stay on bed rest. But this leads to an inevitable weight gain. Minimal or no workouts will allow too much weight gain for the body. While doctors advise patients to do some free-hand exercises, some people find it difficult to do. That is why the weight gain occurs quickly when resting after an operation.

Recovery from postoperative surgery requires enough rest. Total rest or low activity will slow the BMR (basic metabolic rate) of the body, which also contributes to weight gain. Expenditure on energy is directly proportional to BMR and level of operation. Low physical activity can reduce expenditure on BMR and calories that lead to weight gain. Doctors advise sluggish physical activity to restart the body’s metabolic system again during the healing process.

Now, after surgery, we are clear about the causes of weight gain, let’s move on to some steps you can take to resolve it.


If anyone undergoes surgery, the tissues of the body suffer a lot of traumas. You may not know, but inflammation is caused by this. Again this inflammation results in water retention. The risks of fluid retention arise when it comes to operation due to the accident. The surgeries are also less likely to induce weight gain since the body is afflicted with reduced trauma.

Changes in immunology, metabolic, and endocrine result from surgical trauma. Trauma is a corporal reaction to upsetting and distressing incidents. Post-surgery trauma disturbs the body’s equilibrium and, ultimately, induces a hormonal imbalance that often leads to hypothalamic-pituitary-adrenal axis dysfunction and also affects the body in the future.

A study showed that women with PSTD appear to gain weight and become obese and overweight at high risk.

Precautions you need to keep in mind

Here are some of the precautions that you must keep in your mind when it comes to managing your weight after surgery:

  • If a patient gains weight quickly, they may need to seek medical attention. After the surgery, it can take a week to get back to normal appetite. But not eating or worse, consuming unhealthy foods is important.
  • High-calorie food should be substituted for low-calorie food. It should include high-fiber and water-rich foods.
  • A healthy fitness and weight loss choices such as yoga, swimming, brisk walking are effective precautions for weight gain prevention.
  • It is also recommended to get enough sleep and immediately take some precautions after the surgery to prevent overpressing.
  • Alcohol and smoking avoidance is good for wellbeing.

What changes to need to bring in your diet for weight gain?

Here are some of the tips you need to follow to enjoy a healthy diet after major surgery:

Switch on to taking lean proteins

Protein plays an important part in the healing process. It helps restore and heal damage to the tissue, improves immunity, and maintains a healthy metabolic rate (14).

Focus on always integrating good-quality protein into each meal. Consume lean protein with low-fat content to prevent weight gain.

Include skinless white meat in your diet, lean beef or pork cuts, eggs, fish, plant proteins such as peas, beans, legumes, and low-fat dairy products.

Try safe methods of cooking such as steaming and add protein to salads.

Consume a lot of vegetables and fruits

Vegetables and fruits are filled with water and fiber, which can help avoid unnecessary weight gain. Women frequently complain after receiving C-section that they are gaining belly fat. Research done on mice proved this. Eating more soluble fiber can also be of use in this respect.

In addition, vegetables and fruits are natural diuretics that can help flush excess water out of the body. Include in your diet cucumber, watermelon, lemon, asparagus, leaves of dandelion, and nettle leaves. Some great options include spinach, broccoli, cabbage, cauliflower, tomatoes, beans, mushrooms, aubergines, and other green leafy vegetables.

Drink loads of water

Research on overweight girls found consuming plenty of water increases the metabolic rate and digestion.

Adequate water consumption avoids unnecessary fluid accumulation by sending a signal to the kidneys to delay water conservation. But if you have any serious kidney problems, please consult your doctor before your water intake increases.


Don’t worry about weight gain from post-surgery. You will certainly shed those extra pounds by taking good care, keeping a balanced lifestyle, and keeping yourself safe and fit. While these recoveries can make you earn a couple of pounds as we spoke before, the stress is reduced. Adequate diet and adequate water consumption will help you get back into your own body.

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