Arsenal have confirmed Wilshere is to undergo a minor procedure on his knee in the next few days.
"However, his ongoing rehabilitation has seen a long-standing slight issue with his patella tendon in his left knee flare up.
"As a result, Jack will travel to Sweden for a minor procedure on his left knee in the next few days. This procedure is not expected to significantly affect Jack's comeback ahead of next season.
"On returning to England, Jack will resume his rehabilitation with the Arsenal medical team over the summer."