Lotus milk refers to the female breast ulceration caused by myiasis, and the point in the middle of the chest is covered with black things that look like lotus flowers. The real killer of breast ulceration is a carnivorous fly called "shield fly" (English name Tumbu fly). Myiasis may also be one of the causes of chest ulcers in the habitat of shield flies. But chest ulcers caused by shield flies are extremely rare.

Myiasis refers to a disease caused by maggots (larvae of flies) parasitic on people or animals. It is the general name of diseases caused by the larvae of Diptera parasitic flies attacking domestic animals. The main harmful diseases are gastromyiasis, dermatomyiasis and rhinomyiasis. Common in pastoral areas. Data show that shield flies, also known as anthropophagous maggots, can cause dermatomyiasis. The anthropophagous fly larvae, which are widely distributed in Africa, will form furuncle-like masses after drilling into human skin. However, unlike common house dust mites and cowhide flies, it does not migrate, while house dust mites and cowhide flies move under the skin, sometimes transferring to deep tissues and organs such as chest cavity, abdominal cavity, eyes and brain.

Dr. Zhong, a licensed chemist, pointed out that fly maggot parasites like to "nest" on unclean underwear, because unclean underwear has a smell and stains, which provides good living conditions for parasites.

Therefore, it is very important to pay attention to hygiene.