The answer depends on the type of dermatology program you are pursuing.
For MBBS and Dermatology Specialization:
Yes, in Pakistan, the MDCAT (Medical and Dental College Admission Test) or a similar entrance exam like ETEA (for Khyber Pakhtunkhwa province) is typically necessary to gain entry into an MBBS (Bachelor of Medicine, Bachelor of Surgery) program. An MBBS is a prerequisite for becoming a dermatologist. After completing your MBBS, you must then pursue further specialized training in dermatology. This is consistent with information from Marham (https://www.marham.pk/healthblog/how-to-become-dermatologist-in-pakistan/) and Quora (https://www.quora.com/Is-it-necessary-to-pass-the-MDCAT-test-to-become-a-dermatologist-or-gynecologist). Some universities may use their own entrance exams or accept the NTS NAT-1, as noted by Marham.
For BS Dermatology:
No, the MDCAT is not required for a Bachelor of Science (BS) in Dermatology. A BS in Dermatology is a different pathway than the MBBS route; it focuses on a more technological and applied aspect of the field. This information is supported by CampGearPoint (https://campgearpoint.com/scope-of-bs-dermatology-in-pakistan/).
In summary: The necessity of the MDCAT depends entirely on the type of dermatology-related education you are pursuing. An MBBS (requiring MDCAT or equivalent) is the traditional route to becoming a practicing dermatologist, while a BS in Dermatology provides a different, more technologically focused skill set.