<s>[INST] Hi, My father is 74 years old. His foot has swollen on last week. What type of diagnosis has to do for this case. Which specialist has to require to check his body? I am eagerly waiting for your kind reply. Best regards Sayeda Halima, PhD Bangladesh [/INST] Hello I have studied your case,I would like to keep possibility of gout as per your history and symptoms.In gout there is accumulation of uric acid crystals in joint mainly foot. This leads to swelling and redness in foot.Another differential can be nerve compression leading to tingling and swelling.Or it can be soft tissue injury due to trauma which is not seen on x ray and may need MRI if remains persistent.I will advise to do blood inv like complete blood count ,uric acid level, if required EMG –NCV[ nerve study] and MRI spine after clinical examination.Till time take analgesic and neurotropic like methylcobalamine and pregabalin consulting your doctor.If gout is confirmed you may need medicine accordingly and diet restrictionYou may consult orthopaedic doctor or MD medicine.Hope this answers your query. If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries. Wishing you good health.Take care. </s>