Myasthenia gravis (MG) is an autoimmune neuromuscular disorder resulting in fluctuating muscle weakness and fatigability. We report a case of myasthenia gravis diagnosed at the age of 5 years in a 20 year old young adult. He presented with 6 month history of drooping of both upper eye lids which worsens as the day progresses and has been successfully managed for fifteen years despite challenges of getting needed medication on regular basis. Tensilon test was positive; Chest CT normal study; Patient is doing very well as an undergraduate in one of the leading Nigerian University. He is clinically stable on daily Pyridostigmine and low dose Prednisolone. Myasthenia gravis in children can be readily diagnosed and managed effectively despite limited resources, if parents and doctors are willing and committed enough.