You’re in a competitive subspecialty fellowship with four other people. One takes credit for your ideas in front of attendings. Another gossips to faculty about perceived weaknesses in your clinical skills. A third has perfected the art of looking busy while doing nothing, leaving you to pick up the slack. And you’ll spend two to three years with these people, then potentially compete for the same jobs, while faculty watch everything unfold.

This isn’t a hypothetical. It’s a reality for residents and fellows in small, competitive programs where your training environment doubles as a pressure cooker of career anxiety. The question isn’t whether you’ll encounter toxic dynamics—it’s how you handle them without torpedoing your own future.

The Real Stakes: Why This Matters More in Small Subspecialties

In a large internal medicine residency, you can avoid a problematic co-resident. Different rotations, different call schedules, different social circles. In a three-person cardiothoracic surgery fellowship or a five-person interventional radiology program, there’s nowhere to hide. You’re working alongside the same people constantly. Faculty notice who gets along with whom. And in fields where jobs are scarce and reputation travels fast, the person who seems “difficult” or “political” often pays a price—even if they were the victim, not the perpetrator.

The uncomfortable truth: faculty don’t always see what’s actually happening. They see the surface—who speaks up in conferences, who seems collaborative, who appears stressed or isolated. A skilled manipulator can look like a team player while making your life miserable behind the scenes. And complaining about it often backfires, making you look like the problem.

Option One: Fight Fire with Fire

Some residents decide to fight fire with fire. They start positioning themselves politically, building alliances, making sure their accomplishments are visible, and subtly undermining competitors. This approach has one clear advantage: it’s proactive. You’re not sitting back while someone else controls the narrative.

But the costs are real. Political maneuvering is exhausting, especially when you’re already working 60-70 hour weeks. It requires constant vigilance and energy you probably don’t have. It can compromise your integrity in ways that feel small at first but compound over time. And if you’re not naturally inclined toward this kind of behavior, you’ll probably do it badly—which is worse than not doing it at all.

The other risk: you become what you’re fighting against. Three years of operating in survival mode can change how you relate to colleagues permanently. That’s a high price to pay for a fellowship.

Option Two: Step Back

The opposite approach: put your head down, do excellent clinical work, ignore the politics entirely, and trust that quality will win out. This is appealing because it feels principled. You’re above the fray. You’re focused on what matters.

The problem is that reputation in medicine isn’t purely merit-based. Faculty form impressions based on visibility, communication, and relationships—not just clinical competence. If you’re invisible while your co-resident is actively building rapport with attendings (even if that rapport is partly performative), you may end up with weaker letters, fewer opportunities, and less support when job season arrives.

Complete disengagement also means you have no allies when things go sideways. If a toxic co-resident spreads misinformation about you, there’s no one to push back or provide context.

The Better Path: Strategic Professionalism

The middle path works best. It requires intentional effort but doesn’t demand you become someone you’re not.

Build direct faculty relationships on your own terms. Don’t wait for co-residents to control the narrative. Schedule one-on-ones with key attendings. Ask for feedback. Express interest in their research or clinical areas. This isn’t political—it’s professional development. But it also means faculty know you as an individual, not just through the filter of program dynamics.

Document your contributions. Keep a running list of cases, procedures, projects, and teaching you’ve done. Not because you’re building a legal case, but because you’ll need this for job applications and letters anyway. If someone takes credit for your work, having documentation gives you options.

Stay professionally neutral with difficult co-residents. You don’t have to be friends. You don’t have to pretend everything is fine. But avoid public conflict, written complaints (unless something crosses into harassment or patient safety), and venting to colleagues who might repeat it. The goal is to give no ammunition while preserving your own sanity.

Find one trusted person outside the program. You need somewhere to process what’s happening—a mentor from a previous rotation, a friend in another specialty, a therapist. Bottling it up leads to burnout. Venting inside the program leads to drama. External support gives you an outlet without professional risk.

The Long Game

Here’s what’s easy to forget when you’re in the middle of toxic dynamics: fellowship is temporary. The relationships that matter most for your career are often the ones you build with attendings who will write your letters and colleagues you’ll encounter at conferences for decades. Your co-resident who’s making your life difficult now will likely end up in a different city, a different practice, a different orbit.

The job market rewards clinical competence, strong references, and professional reputation. It does not reward whoever “won” the fellowship politics. Your energy is better spent on the things that actually compound: skills, relationships with faculty, and your own mental health.

Toxic dynamics are real, and they’re exhausting. But they’re survivable—if you choose where you spend your limited energy. So what will you protect first as you move forward?