All4Women: Birth Control Patch and Blood Clots Birth Control Patch and Blood Clots ================================================================================ All4women on 06 November, 2009 07:35:00 Women who use the birth-control patch havedouble the risk of blood clots as those on oral contraceptives. The patch exposes women to 60% more oestrogen. Help us give you the tips you are interested in, rate this tip or leave your comments and share related info with readers below. Source: All4women