Pei Zhengxue Health Weibo, Volume 3

3. Thinness

Chapter 123

**Question:** I’m 23 years old, 170cm tall, but only weigh 50kg. Is this healthy? I don’t usually get sick—I haven’t had a cold in years, though I occasionally suffer from pharyngitis, which rarely recurs. I don’t smoke

From Pei Zhengxue Health Weibo, Volume 3 · Read time 1 min · Updated March 22, 2026

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Section Index

  1. 3. Thinness

3. Thinness

Question: I’m 23 years old, 170cm tall, but only weigh 50kg. Is this healthy? I don’t usually get sick—I haven’t had a cold in years, though I occasionally suffer from pharyngitis, which rarely recurs. I don’t smoke and rarely drink alcohol. Could it be that my digestion isn’t working properly?

Answer: Your ideal weight should be around 60kg. You’re too thin, so I recommend undergoing a comprehensive medical examination. If no other organic lesions are found, consider whether there might be problems with your digestive system. Most commonly, it’s a functional disorder of the digestive system that leads to difficulties in digestion and absorption, resulting in insufficient body weight. However, some cases of thinness are congenital.


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