This is likely the case when introducing a new specimen into the enclosure. A picking order has to be established. I have even seen this vice versa where the female did the bullying to a newly introduced male. Make sure the females have a place to hide to get away from the male i.e hiding places and adequate enclosure size. As you mentioned, this could also be rough house prior to courtship. I keep an eye on my female incase it gets too rough. If you see scabs on the back of the neck, seperate them for a while and use neosporin. Best advice is to keep an eye on them.
Let them shed on their own. In the past, if I noticed that they were in shed, I would spray the cage a bit to ensure it was moist enough for the skin to come off easily. Now, I keep a hide box that is a moisture chamber that is sprayed 2-3 times a week. They go in there when they shed and it also doubles as an egg laying chamber. The chamber consists of 75% bed a beast and 25%cypress in a tupperware container with a hole in the top for access. Don't drench the mixture, just keep it moist. The skin is great protein and I have even seen my female eating it off my male when he was in shed.
Hope this helps,
Severa

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1.3 leopards( 1 tremper albino,1 high yellow,1 blizzard, 1 tang)
1.0 African fattail
1.1 r. ciliatus (Harlequin flames)
0.0.1 r. auriculatus
1.0 Beardie (50% German Giant x Cawley Red X Hypo Red/Flaming Tiger)
1.0 mexican red knee tarantula
1.0 albino sonoran gopher
1.0 eastern painted turtle
0.1 sun conure
3.3 Ball pythons (1 pastel,2 het for albino, two normal, one granite)
0.2 chihuahuas
1.0 Weeny dog
0.1 spouse