What is the reason for the sudden appearance of armpit odor?

In most cases, body odor is related to family inheritance, and the odor is more obvious after puberty. Mainly due to abnormal secretion of armillary sweat glands, excessive sweat secreted cannot be discharged in time, and will be decomposed by bacteria in the armpit, resulting in sour odor. If armpit odor is suddenly manifested, it may also be caused by infectious diseases.