how many time have you experienced drop in white blood cells?
can you please mention what component of white blood cells mainly decreased?
you have been treated successfully for the disease. now surgeries may be responsible for adhesions causing intestinal obstruction
but yearly leukopenia ( drop in white cells) is not very common. you should be screened for other disease. autoimmune disease
, lupus, infections like brucellosis
also can cause leukopenia. bone marrow
exam may be necessary. consult your physician.