A method for manufacturing knitted articles for forming items of clothing without lateral seams, with a circular knitting machine having needle cylinder and needles, comprising a step for forming at least one pouch-shaped region in which part of the needles or all the needles that belong to at least one sector of the needle cylinder are moved to knit at at least one feed of the machine by actuating the needle cylinder of the machine with an alternating rotary motion about an axis thereof and with an extent of oscillation that is sufficient to make transiting, at said at least one feed, all the needles of said at least one sector that are moved for knitting at said at least one feed, in order to form, with the needles that belong to said at least one sector and are moved for knitting, a number of rows of knitting in excess with respect to a number of rows of knitting formed by the needles that are contiguous to said at least one sector, wherein said step for forming at least one pouch-like region comprises the simultaneous production of at least two pouch-like regions, in which needles belonging to at least two sectors of the needle cylinder that are angularly spaced from each other around the axis of the needle cylinder are moved so as to knit at a different feed for each one of said sectors and the needle cylinder is actuated with an alternating rotary motion about its own axis with an oscillation extent that produces the transit, in front of the corresponding feed, of all the needles of the correlated sector that are moved so as to knit in order to form, with the needles that belong to said at least two sectors and are moved so as to knit at the corresponding feeds, rows of knitting in excess with respect to the rows of knitting formed, during said step for forming the pouch-like regions, by the needles that are contiguous to said at least two sectors.