The possible causes of large hard bumps formed after squeezing pimples are localized inflammation and infection of the skin, scarring and so on. Patients can treat the symptoms according to the different causes in time. Localized inflammation of the skin: large hard bumps formed after squeezing pimples may be due to forceful squeezing, which makes the inflammation of the squeezed area recurring and aggravated, resulting in inflammatory lesions. It is recommended to use antibiotic drugs, such as fusidic acid ointment, etc.; usually pay attention to dietary habits, mainly to light diet, to reduce the stimulation of the skin. Keloid: The big hard bumps formed after squeezing the acne may be because the patient is keloid, which is easy to cause keloid formation and grow big hard bumps. If necessary, localized closed treatment or surgical treatment. It is recommended to go to the hospital in time to receive treatment, you can choose medication, physical therapy, surgical excision and other treatment modalities, so as not to delay the condition.