腹胀、排气增多——不是你吃错了，是菌群出了问题 Bloating and Gas After Surgery? It's Your Microbiome, Not Your Diet.

胆囊切除术后一个月，李女士来到我的门诊。她的问题不是腹泻，而是持续的腹胀——每顿饭后都胀，排气多，大便有时不成形，有时又便秘。她把所有能想到的"刺激性食物"都戒了，还是不好。我问她：手术前后用了多少天抗生素？她想了想，说大概10天。那就找到答案了。 One month after cholecystectomy, a patient came to my clinic. Her complaint wasn't diarrhea, but persistent bloating — distension after every meal, excessive gas, sometimes loose stools and sometimes constipation. She had eliminated every "irritating food" she could think of, but nothing improved. I asked: how many days of antibiotics did you receive around the time of surgery? She thought for a moment: about 10 days. That was the answer.

手术本身，就是一次菌群冲击 Surgery Itself Is a Microbiome Disruption Event

我们的肠道中生活着约40万亿个微生物，它们构成的生态系统被称为"肠道菌群"。这个生态系统高度敏感，任何破坏平衡的因素都会引发连锁反应。胆囊手术有两个主要的"破坏源"： Our intestines host approximately 40 trillion microorganisms, forming an ecosystem known as the gut microbiome. This ecosystem is highly sensitive — any factor that disrupts its balance triggers a cascade of effects. Gallbladder surgery introduces two primary disruption sources:

第一：抗生素。腹腔镜手术通常需要预防性抗生素，有时围手术期抗生素使用超过一周。广谱抗生素在杀灭致病菌的同时，也会大量消灭对人体有益的共生菌——尤其是乳酸杆菌和双歧杆菌。研究显示，一个疗程的广谱抗生素可在数天内显著降低肠道菌群的多样性，而恢复往往需要数月。 First: antibiotics. Laparoscopic surgery typically requires prophylactic antibiotics, and perioperative antibiotic courses sometimes extend beyond a week. Broad-spectrum antibiotics eliminate pathogenic bacteria while simultaneously decimating beneficial commensal flora — especially Lactobacillus and Bifidobacterium species. Research shows a single course of broad-spectrum antibiotics can significantly reduce microbiome diversity within days, with recovery taking months.

第二：胆汁流模式的改变。这一点常被忽视。胆汁本身对肠道菌群具有重要的调节作用——它具有天然的抗菌特性，能抑制某些细菌在小肠中过度生长。胆囊切除后，胆汁从间歇性集中释放变为持续低浓度涓滴，这种模式的改变会影响小肠和结肠的菌群组成。部分患者甚至因此发生小肠细菌过度增殖（SIBO），进一步加重腹胀与消化不规律。 Second: changes in bile flow pattern. This is frequently overlooked. Bile itself plays an important regulatory role for gut flora — it has natural antimicrobial properties that help suppress bacterial overgrowth in the small intestine. After cholecystectomy, bile shifts from intermittent concentrated pulses to continuous low-concentration dripping, which alters the microbial composition of both the small intestine and colon. Some patients develop Small Intestinal Bacterial Overgrowth (SIBO) as a consequence, further worsening bloating and digestive irregularity.

为什么选择 LGG 菌株？ Why Specifically the LGG Strain?

市面上益生菌产品琳琅满目，但不是每种菌株的临床证据都一样充分。鼠李糖乳杆菌 GG（Lactobacillus rhamnosus GG，简称 LGG）是迄今研究最深入的益生菌菌株之一，已有超过1000项临床研究，其中大量为随机对照试验。它被证实能够： The probiotic market is crowded, but not all strains have equivalent clinical evidence. Lactobacillus rhamnosus GG (LGG) is one of the most thoroughly studied probiotic strains, with over 1,000 clinical studies — many of them randomized controlled trials. It has demonstrated capacity to:

• 耐受胃酸和胆汁，在胃肠道内存活并定植Survive gastric acid and bile, colonizing the gastrointestinal tract
• 缩短抗生素相关性腹泻的病程（抗生素使用期间同服效果更佳）Shorten antibiotic-associated diarrhea duration (more effective when taken concurrently with antibiotics)
• 帮助重建肠道微生物多样性，改善菌群失衡Help restore gut microbial diversity and correct dysbiosis
• 改善肠道屏障功能，减少炎症因子渗漏Improve intestinal barrier function and reduce inflammatory cytokine leakage
• 减轻功能性腹胀与排气过多Alleviate functional bloating and excessive gas

🩺 医生提示：如果你在手术前后使用了抗生素，建议在出院后立即开始服用益生菌，持续至少4到8周。不要等到腹胀出现才用——预防比治疗更容易。 🩺 Clinical Note: If you received antibiotics around the time of surgery, I recommend beginning probiotics immediately after discharge and continuing for at least 4 to 8 weeks. Don't wait for bloating to appear — prevention is far easier than treatment.