They may apply pressure about the ulnar nerve at your wrist to check out if this will make your numbness and tingling even worse. Many ganglion cysts take care of naturally after some time. If the cyst would not result in pain or interfere with function, checking may be enough. https://wristnervecompressionsing15966.wikiannouncement.com/8440618/facts_about_orthopaedic_hand_care_singapore_revealed