Hawthorn star Brad Sewell could be forced to spend another round on the AFL sidelines after he had his appendix removed this week.

Sewell woke with stomach pains on Wednesday and, after a check-up with Hawthorn's doctor, underwent surgery that day.

The Hawks' reigning best and fairest winner is currently recuperating from shoulder surgery, which has kept him out since round 10.

The Hawks do not play again until July 13 - against Sydney at the MCG - but the club admits the 24-year-old midfielder remains in some doubt because of both bouts of surgery.

"Both with the shoulder and the appendix we're not sure, so we won't know until early next week to see if he trains," a club spokesman said.

Fellow onballer Luke Hodge also had his appendix removed while injured, in May, but that had no impact on his season as he was sidelined by a hamstring injury at the time.

Essendon's Ricky Dyson also had his appendix removed in May and only returned to the senior side last weekend.

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