Abnormal sweat gland morphology Chromhidrosis 2022-11-23T23:13:10Z While chromhidrosis is a clinical diagnosis, further studies may be needed to ascertain the type and cause of chromhidrosis if not apparent from the history and physical examination. A Wood's lamp will fluoresce green, blue, and yellow apocrine gland secretions yellow, while black and dark brown secretions usually do not fluoresce. Secretion of colored sweat.