A bad pharmacy is a place where low—quality medicines, lack of qualified staff and low level of service become serious problems. Such pharmacies may sell expired or counterfeit drugs, which endangers the health of customers. Illiterate pharmacists are often unable to give the right recommendations or provide the right information about medicines, which is also dangerous. In addition, poor service, rudeness and inattention to customers worsen the overall shopping experience. Solving the problem requires strict product quality control and improving the professionalism of pharmacy staff.