Disc Brakes may require some adjustment from time to time, as with any other style of braking system. The steps here are as follows:

First - Ensure the rotor itself (round part) is straight when the wheel is spinning

Second - Make sure the caliper is aligned with the rotor

Third - We want adequate clearance between the pads and the rotor

For *Mechanical Disc* brakes - take a look at the following tutorial -> https://www.parktool.com/blog/repair-help/mechanical-disc-brake-alignment

For *Hydraulic Disc brakes* - click the link provided -> https://www.parktool.com/blog/repair-help/hydraulic-disc-brake-alignment

This is a standard bicycle repair procedure any bicycle shop can help with. If you’re unable to complete this adjustment yourself, feel free to swing by any local bike shop and they can certainly help.