Hello! Welcome and thank you for asking on HCM! Your symptoms are compatible with a disorder called palmar erythema in. This condition can be caused by various medical problems, each having its own range of severity. In a lot of patients, red palms have no identifiable cause and they are presented under primary palmar erythema. However, there are many cases in which the red palms are a symptom of another disease, being presented as secondary palmar erythema. I would mention: -smoking and alcohol intake -high blood pressure -thyroid dysfunction -kidney or liver disorders -polycythemia vera -diabetes -rheumatological disorders, etc.. I would recommend performing inflammation tests and thyroid hormone levels to exclude this possibility. Your renal function, may be related to it. But as, I mentioned before, in many cases, the cause can not be found even after a lot of tests. Hope you will find this answer helpful! Best wishes, Dr. Iliri