What causes wounds on the gums which are like blood stripes and painless small bumps filled with fluids on the inside cheeks?

Biting/salivary duct. repeated bitting can cause the strips on the cheeks. If it around the gums near the teeth = most likely gingivitis. Small painless fluid filled bumps in cheeks = most likely fluid filled salivary glands just underneath the tissue. For gums just work on brushing techniques and the bumps = no worries and normal. Connect with my Virtual Practice on Healthtap for any dental questions with my special keycode: DFWMCQ! Securely video or text chat by virtual appointment. http://htap.us/28qexs.