The major problems faced by hikers include exhaustion from long hours of walking, dehydration if not enough water is consumed, and altitude sickness at higher elevations with lower oxygen levels. Joint pain is also common as the body is not used to continuous walking on difficult terrain. Formation of blisters on the feet is another issue hikers encounter due to accumulated moisture, pressure, and foot rubbing if improper shoes or socks are worn. Being prepared with acclimatization, sufficient rest, water, and well-fitting footwear can help hikers avoid these common problems.