Abdominal Changes After Weight Loss: Causes and Solutions - Family Medicine

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Weight loss-related issues?


Hello Doctor, I consulted about weight loss issues back in February.
Since then, I have maintained my weight at 58 kg for the past four months, and my body fat percentage is now between 13-15%.
However, I have encountered a problem: while I can see my upper six-pack abs when standing, my lower abdomen protrudes when I sit down or bend over.
I'm not sure if this is due to excess skin from losing too much weight or if I haven't lost enough fat, leaving some fat in that area.
Especially when I bend over, it hangs down and looks unattractive, and this has been persistent for quite some time.
What do you think is causing this, and how can I resolve it? Attached are the images: 1.
Standing: https://drive.google.com/file/d/1fIHee2VfPYe9oDkMRrU9ymOQn3hWTO0K/view?usp=sharing 2.
Sitting: https://drive.google.com/file/d/1fSAyMOP1lMP1oKCBjUK7rI1K6L8SOvMU/view?usp=sharing 3.
Bending: https://drive.google.com/file/d/1fViY8t57iguTpjrTHRw81DiNpKn7h6QJ/view?usp=sharing Thank you for your guidance, Doctor.

Niming, 20~29 year old female. Ask Date: 2021/06/03

Dr. Wu Zongying reply Family Medicine


Hello: I appreciate your efforts and the achievement of developing six-pack abs.
It is essential to consume adequate protein to ensure that your muscles have strength.
You mentioned a protrusion; this needs to be assessed visually for an accurate diagnosis, as some abdominal hernias can also cause a bulge.

Reply Date: 2021/06/03

More Info


Understanding abdominal changes after weight loss can be complex, as various factors contribute to how our bodies respond to significant changes in weight and body composition. In your case, maintaining a weight of 58 kg with a body fat percentage between 13-15% indicates that you have achieved a relatively lean physique. However, the issue of abdominal protrusion when sitting or bending over is a common concern among individuals who have lost weight, and it can stem from multiple causes.


Possible Causes of Abdominal Changes
1. Skin Elasticity: After significant weight loss, the skin may not retract fully, especially if the weight loss was rapid. The skin's ability to bounce back depends on several factors, including age, genetics, and the amount of weight lost. If the skin has lost its elasticity, it may appear loose or saggy, particularly in the abdominal area.

2. Fat Distribution: Even with a low body fat percentage, some individuals may still have localized fat deposits in certain areas, including the abdomen. This can be due to genetic predisposition, hormonal influences, or lifestyle factors. It’s possible that while you have lost overall body fat, some fat may still remain in the lower abdominal area.

3. Muscle Tone: The appearance of the abdomen is also influenced by the underlying muscle tone. If the abdominal muscles, particularly the transverse abdominis, are not sufficiently strengthened, it can lead to a less toned appearance. Engaging in targeted core strengthening exercises can help improve muscle tone and support the abdominal wall.

4. Posture: Poor posture can exacerbate the appearance of abdominal protrusion. When sitting or bending, slouching can cause the abdomen to push outward. Maintaining good posture can help mitigate this effect.

5. Bloating or Gastrointestinal Issues: Sometimes, abdominal protrusion can be exacerbated by bloating or gastrointestinal discomfort. This can be due to dietary choices, food intolerances, or other digestive issues. Keeping a food diary to identify potential triggers may be beneficial.


Solutions and Recommendations
1. Strength Training: Incorporate a well-rounded strength training program that includes exercises targeting the core. Focus on exercises like planks, leg raises, and bicycle crunches to strengthen the abdominal muscles. Aim for 2-3 sessions per week.

2. Cardiovascular Exercise: Continue with cardiovascular activities to help maintain overall body fat levels. This can include running, cycling, or any activity that raises your heart rate.

3. Nutrition: Pay attention to your diet. Ensure you are consuming a balanced diet rich in whole foods, including lean proteins, healthy fats, and plenty of fruits and vegetables. Reducing processed foods and sugars can also help minimize bloating.

4. Hydration: Staying well-hydrated can aid digestion and reduce bloating. Aim for adequate water intake throughout the day.

5. Posture Awareness: Be mindful of your posture throughout the day. Practicing good posture can help improve the appearance of your abdomen when sitting or bending.

6. Consult a Professional: If the issue persists or if you have concerns about your abdominal appearance, consider consulting a healthcare professional or a registered dietitian. They can provide personalized advice and assess whether there are any underlying issues that need to be addressed.

In conclusion, the changes you are experiencing in your abdominal area after weight loss can be attributed to a combination of factors, including skin elasticity, fat distribution, muscle tone, posture, and potential gastrointestinal issues. By focusing on strength training, maintaining a balanced diet, and being mindful of your posture, you can work towards achieving a more toned appearance in your abdominal area. If you have ongoing concerns, seeking professional guidance may provide additional insights and solutions.

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