Im 56 year old post menopause almost 16 years ago and lately im discharging a clear color no smell just a little and sometimes more and light yellow?

Several causes: Bacterial vaginosis and yeast are the two most common vaginal infections. Both can look yellow. Sexually transmitted diseases like trichomoniasis, chlamydia and gonorrhea are also possibilities. Some postmenopausal women have some discharge from vaginal atrophy. Urinary incontinence is also common and can appear to be discharge. Yellow discharge is not normal and needs to be evaluated.