Chronic wounds are trapped in nonadvancing phase of healing and are unable to progress through the sequential phase of tissue repair, its termed chronic when does not heal in 3 months,its huge burden on population n term of both morbidity and annual healthcare expenditure.and even after successful treatment ulcers reappear in 66 to 90% of cases. Causes for chronic ulcers Infections Bacterial like tuberculosis,syphlis Fungal: actinomycosis,madura mycosis Viral HIV ​Arterial causes atheroscelerosis ,stenosis or emboli in upper and lower limbs Venous ulcer: accounts for 70 to 90% leg ulcers either venous thrombosis or valve insufficiency Malignancy: basal cell carcinoma, sqamous cell carcinoma and other skin malignancies Traumatic Pressure sore: bed sores in paralytic and comatose patients Diabetes 62 million indians are suffering and 15% are going to suffer from diabetic foot because of…