Been training kickboxing for about 3 months now and I wrap my hands before every session like my trainer showed me. But my knuckles are still getting sore during heavy bag work, especially around my pinky side. Am I wrapping wrong or is this just something that takes time to toughen up?
Your trainer probably showed you a solid wrap, but "proper" wrapping has way more variation than most people realize, and it's likely the culprit here. The pinky side soreness is a red flag - that's usually where people either skip wrapping coverage or don't secure it tightly enough. Have your trainer watch you wrap from start to finish and compare it to how they do it. Small differences in how you anchor around the wrist, how many passes you do across the knuckles, and how tight you pull the tape matter a ton. Some trainers wrap heavier across the knuckle box, others distribute it differently. Also check if you're punching the heavy bag correctly - if you're slightly rolling your wrist or not keeping your hand perfectly flat on impact, the wrap won't protect you the way it should. Bad mechanics can make even a good wrap feel useless.
That said, some soreness early on is normal, especially in your first few months. Your hands are literally not used to this yet. But it shouldn't be painful enough to dread bag work. The fact that it's specifically your pinky side and "heavy" bag work suggests either the wrap's not doing its job or your punch form needs tweaking. Both are fixable. Keep training, but get your trainer to diagnose the wrap first - have them compare how tight and structured theirs feels versus yours. Your hands will toughen up too, but you shouldn't be white-knuckling through sessions waiting for that to happen.
Are you wrapping the pinky side tighter than the rest of your hand, or leaving it looser?
Three months in, soreness isn't just "toughening up" - your hands should already be adapting better than that. The pinky-side pain is telling you something's off with pressure distribution. When people wrap their hands, they often unconsciously cinch the knuckles area really tight while leaving the outer edge (pinky side) either under-supported or weirdly compressed. That outer knuckle takes a beating on the heavy bag because it's not getting proper cushioning, and the wrap isn't stabilizing it right.
I had this exact problem years back when I was messing around with boxing at a gym. My fourth and fifth knuckles were killing me despite feeling like my wraps were snug. Turned out my wrap was riding too far toward my palm side on one hand, leaving my outer knuckles basically unprotected. Once I adjusted where I started the wrap and made sure I was pulling it straight across the knuckle area instead of at an angle, it made a huge difference within a week or two. What helped was getting a longer wrap and taking my time to lay each pass flat - no twisted fabric, no bunching. Some people use the figure-eight wrap, others prefer the cross wrap; the style matters less than consistency and making sure every knuckle gets even support. If your trainer showed you one way but didn't walk you through the exact pressure points, that's on them. Watch a few different wrap tutorials specifically for heavy bag work and try adjusting yours. You might also check if your wraps are getting compressed and worn out - old wraps lose their cushioning fast.
The wrapping itself might actually be fine - a lot of people don't realize their gloves are just too small or worn out, which throws off how the wrap sits and puts all the pressure on your knuckles instead of distributing it!
Try this: before your next session, deliberately wrap looser than feels natural and see if the soreness shifts - sometimes we wrap too tight thinking that's protection when it actually concentrates impact on specific spots rather than spreading it across your hand.
Pinky-side soreness after three months is usually a wrapping issue, but the thing people miss most often is tension *distribution* rather than overall tightness. Your wrap might feel snug everywhere, but if you're pulling harder across the knuckles themselves versus anchoring around the wrist and between the fingers, you're basically funneling all the impact directly into those bones instead of dispersing it. The pinky gets hit worst because that's the easiest side to under-wrap while thinking you're going even.
Try this next session: when you wrap, focus on making the passes between your fingers (especially pinky to ring finger) just as tight as the knuckle passes - a lot of people basically skip that part or do it loose. Then when you wrap around the knuckles themselves, aim for "firm and even" rather than "I'm pulling as hard as I can." You want the whole hand wrapped like one cohesive unit, not like your knuckles are in a vice and everything else is whatever. Also double-check that your wrap isn't bunching up anywhere - wrinkles and folds under the glove create pressure points that feel like soreness.
If you do all that and still have trouble, then yeah, it could be gloves that are either too small (which compresses your hand) or too worn out inside. But honestly, most people solving this problem find it's their wrap technique once they really dial in the finger-to-finger tension. Give it a couple sessions and see if it changes.
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